docs(release): re-execute notebooks under DataJoint 2.3.1; bump datajoint_version 2.2 -> 2.3

Docs release step for the 2.3 line. All 22 tutorial/how-to notebook connection
banners now read 'DataJoint 2.3.1 connected' (executed against the released
datajoint==2.3.1 from PyPI, PostgreSQL backend), and the mkdocs marker advances
2.2 -> 2.3. Landed together so the check-notebooks guard stays green.

Verified: 23/23 notebooks executed (0 failed); scripts/check_notebook_versions.py
OK on 2.3.x; mkdocs build --strict exits 0.

Closes #207.

Author: dimitri-yatsenko

mkdocs.yaml

@@ -250,7 +250,7 @@ markdown_extensions:
       generic: true
 extra:
   generator: false # Disable watermark
-  datajoint_version: "2.2"  # DataJoint Python version this documentation covers
+  datajoint_version: "2.3"  # DataJoint Python version this documentation covers
   social:
     - icon: main/company-logo
       link: https://www.datajoint.com

src/how-to/master-part.ipynb

@@ -16,18 +16,18 @@
    "id": "cell-setup",
    "metadata": {
     "execution": {
-     "iopub.execute_input": "2026-05-18T19:42:27.675571Z",
-     "iopub.status.busy": "2026-05-18T19:42:27.675251Z",
-     "iopub.status.idle": "2026-05-18T19:42:28.026876Z",
-     "shell.execute_reply": "2026-05-18T19:42:28.026279Z"
+     "iopub.execute_input": "2026-07-17T00:27:58.116549Z",
+     "iopub.status.busy": "2026-07-17T00:27:58.116324Z",
+     "iopub.status.idle": "2026-07-17T00:27:58.389593Z",
+     "shell.execute_reply": "2026-07-17T00:27:58.388850Z"
     }
    },
    "outputs": [
     {
      "name": "stdout",
      "output_type": "stream",
      "text": [
-      "[2026-05-18 19:42:28] DataJoint 2.2.2 connected to postgres@postgres:5432\n"
+      "[2026-07-17 00:27:58] DataJoint 2.3.1 connected to postgres@postgres:5432\n"
      ]
     }
    ],
@@ -84,10 +84,10 @@
    "id": "cell-define",
    "metadata": {
     "execution": {
-     "iopub.execute_input": "2026-05-18T19:42:28.027920Z",
-     "iopub.status.busy": "2026-05-18T19:42:28.027760Z",
-     "iopub.status.idle": "2026-05-18T19:42:28.311816Z",
-     "shell.execute_reply": "2026-05-18T19:42:28.311281Z"
+     "iopub.execute_input": "2026-07-17T00:27:58.390763Z",
+     "iopub.status.busy": "2026-07-17T00:27:58.390595Z",
+     "iopub.status.idle": "2026-07-17T00:27:58.679401Z",
+     "shell.execute_reply": "2026-07-17T00:27:58.678852Z"
     }
    },
    "outputs": [
@@ -156,7 +156,7 @@
        "</svg>"
       ],
       "text/plain": [
-       "<datajoint.diagram.Diagram at 0xffff764a9d90>"
+       "<datajoint.diagram.Diagram at 0xffff72958d70>"
       ]
      },
      "execution_count": 2,
@@ -225,10 +225,10 @@
    "id": "cell-insert",
    "metadata": {
     "execution": {
-     "iopub.execute_input": "2026-05-18T19:42:28.313033Z",
-     "iopub.status.busy": "2026-05-18T19:42:28.312945Z",
-     "iopub.status.idle": "2026-05-18T19:42:28.319781Z",
-     "shell.execute_reply": "2026-05-18T19:42:28.319299Z"
+     "iopub.execute_input": "2026-07-17T00:27:58.680299Z",
+     "iopub.status.busy": "2026-07-17T00:27:58.680218Z",
+     "iopub.status.idle": "2026-07-17T00:27:58.686221Z",
+     "shell.execute_reply": "2026-07-17T00:27:58.685855Z"
     }
    },
    "outputs": [
@@ -379,10 +379,10 @@
    "id": "cell-query",
    "metadata": {
     "execution": {
-     "iopub.execute_input": "2026-05-18T19:42:28.320926Z",
-     "iopub.status.busy": "2026-05-18T19:42:28.320831Z",
-     "iopub.status.idle": "2026-05-18T19:42:28.324757Z",
-     "shell.execute_reply": "2026-05-18T19:42:28.324278Z"
+     "iopub.execute_input": "2026-07-17T00:27:58.687143Z",
+     "iopub.status.busy": "2026-07-17T00:27:58.687060Z",
+     "iopub.status.idle": "2026-07-17T00:27:58.691399Z",
+     "shell.execute_reply": "2026-07-17T00:27:58.690909Z"
     }
    },
    "outputs": [
@@ -497,10 +497,10 @@
    "id": "cell-join",
    "metadata": {
     "execution": {
-     "iopub.execute_input": "2026-05-18T19:42:28.325531Z",
-     "iopub.status.busy": "2026-05-18T19:42:28.325457Z",
-     "iopub.status.idle": "2026-05-18T19:42:28.330016Z",
-     "shell.execute_reply": "2026-05-18T19:42:28.329459Z"
+     "iopub.execute_input": "2026-07-17T00:27:58.692120Z",
+     "iopub.status.busy": "2026-07-17T00:27:58.692052Z",
+     "iopub.status.idle": "2026-07-17T00:27:58.696507Z",
+     "shell.execute_reply": "2026-07-17T00:27:58.696010Z"
     }
    },
    "outputs": [
@@ -618,10 +618,10 @@
    "id": "cell-aggr",
    "metadata": {
     "execution": {
-     "iopub.execute_input": "2026-05-18T19:42:28.330816Z",
-     "iopub.status.busy": "2026-05-18T19:42:28.330742Z",
-     "iopub.status.idle": "2026-05-18T19:42:28.335817Z",
-     "shell.execute_reply": "2026-05-18T19:42:28.335320Z"
+     "iopub.execute_input": "2026-07-17T00:27:58.697284Z",
+     "iopub.status.busy": "2026-07-17T00:27:58.697202Z",
+     "iopub.status.idle": "2026-07-17T00:27:58.701125Z",
+     "shell.execute_reply": "2026-07-17T00:27:58.700689Z"
     }
    },
    "outputs": [
@@ -736,10 +736,10 @@
    "id": "cell-computed",
    "metadata": {
     "execution": {
-     "iopub.execute_input": "2026-05-18T19:42:28.336815Z",
-     "iopub.status.busy": "2026-05-18T19:42:28.336587Z",
-     "iopub.status.idle": "2026-05-18T19:42:28.376859Z",
-     "shell.execute_reply": "2026-05-18T19:42:28.376290Z"
+     "iopub.execute_input": "2026-07-17T00:27:58.701985Z",
+     "iopub.status.busy": "2026-07-17T00:27:58.701901Z",
+     "iopub.status.idle": "2026-07-17T00:27:58.738286Z",
+     "shell.execute_reply": "2026-07-17T00:27:58.737861Z"
     }
    },
    "outputs": [
@@ -891,39 +891,39 @@
    "id": "cell-delete",
    "metadata": {
     "execution": {
-     "iopub.execute_input": "2026-05-18T19:42:28.377784Z",
-     "iopub.status.busy": "2026-05-18T19:42:28.377695Z",
-     "iopub.status.idle": "2026-05-18T19:42:28.415908Z",
-     "shell.execute_reply": "2026-05-18T19:42:28.415372Z"
+     "iopub.execute_input": "2026-07-17T00:27:58.739147Z",
+     "iopub.status.busy": "2026-07-17T00:27:58.739061Z",
+     "iopub.status.idle": "2026-07-17T00:27:58.773289Z",
+     "shell.execute_reply": "2026-07-17T00:27:58.772861Z"
     }
    },
    "outputs": [
     {
      "name": "stdout",
      "output_type": "stream",
      "text": [
-      "[2026-05-18 19:42:28] Deleting 3 rows from \"howto_masterpart\".\"__session_analysis__trial_score\"\n"
+      "[2026-07-17 00:27:58] Deleting 3 rows from \"howto_masterpart\".\"__session_analysis__trial_score\"\n"
      ]
     },
     {
      "name": "stdout",
      "output_type": "stream",
      "text": [
-      "[2026-05-18 19:42:28] Deleting 1 rows from \"howto_masterpart\".\"__session_analysis\"\n"
+      "[2026-07-17 00:27:58] Deleting 1 rows from \"howto_masterpart\".\"__session_analysis\"\n"
      ]
     },
     {
      "name": "stdout",
      "output_type": "stream",
      "text": [
-      "[2026-05-18 19:42:28] Deleting 3 rows from \"howto_masterpart\".\"session__trial\"\n"
+      "[2026-07-17 00:27:58] Deleting 3 rows from \"howto_masterpart\".\"session__trial\"\n"
      ]
     },
     {
      "name": "stdout",
      "output_type": "stream",
      "text": [
-      "[2026-05-18 19:42:28] Deleting 1 rows from \"howto_masterpart\".\"session\"\n"
+      "[2026-07-17 00:27:58] Deleting 1 rows from \"howto_masterpart\".\"session\"\n"
      ]
     },
     {
@@ -973,10 +973,10 @@
    "id": "cell-cleanup",
    "metadata": {
     "execution": {
-     "iopub.execute_input": "2026-05-18T19:42:28.416778Z",
-     "iopub.status.busy": "2026-05-18T19:42:28.416689Z",
-     "iopub.status.idle": "2026-05-18T19:42:28.420860Z",
-     "shell.execute_reply": "2026-05-18T19:42:28.420466Z"
+     "iopub.execute_input": "2026-07-17T00:27:58.774109Z",
+     "iopub.status.busy": "2026-07-17T00:27:58.774031Z",
+     "iopub.status.idle": "2026-07-17T00:27:58.777237Z",
+     "shell.execute_reply": "2026-07-17T00:27:58.776813Z"
     }
    },
    "outputs": [],