Added CI to detect new notebooks

Author: classiqdor

.github/workflows/Notification-detect-new-notebooks.yml

@@ -0,0 +1,43 @@
+name: "Detect New Notebooks in PR"
+
+on:
+  pull_request:
+    types: [opened, synchronize, reopened]
+
+jobs:
+  detect-and-respond:
+    runs-on: ubuntu-latest
+    permissions:
+      contents: read
+      pull-requests: write
+
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v4
+        with:
+          fetch-depth: 0
+
+      - name: Get newly added notebooks
+        id: changed-files
+        uses: tj-actions/changed-files@v46.0.1
+        with:
+          files: |
+            **/*.ipynb
+
+      - name: Add 'new notebook' label
+        if: ${{ steps.changed-files.outputs.added_files_count != '0' }}
+        uses: actions-ecosystem/action-add-labels@v1
+        with:
+          github_token: ${{ secrets.GITHUB_TOKEN }}
+          labels: new notebook
+
+      - name: Comment on PR
+        if: ${{ steps.changed-files.outputs.added_files_count != '0' }}
+        uses: marocchino/sticky-pull-request-comment@v2
+        with:
+          token: ${{ secrets.GITHUB_TOKEN }}
+          header: new-notebook-alert
+          message: |
+            🔥 New notebook just dropped!
+
+            @amir-naveh , @TomerGoldfriend — come check out this shiny new addition to our repo.