Remove Change Type template and change label names (#2196)

#### Reference Issues/PRs
<!--Example: Fixes #1234. See also #3456.-->

#### What does this implement or fix?
* Remove template and only rely on manually adding labels with the CI
checks failing if none are provided. As discussed here
https://github.com/man-group/ArcticDB/pull/2174/files#r1962142382
* Add label names to the existing ones that are used for changelog
generation:
  * `major` or `api break`
  * `minor` or `enhancement`
  * `patch` or `bug`
* Fix permissions for automatic branch creation
* Fix changelog builder not ignoring `rc` releases when comparing to
previous release.
* Enforced branch protection for the release branch so it is only
creatable by admins (and the workflow user's special token)
https://github.com/man-group/ArcticDB/settings/rules/3823486
* Fix docs build (remove unsupported option) 

#### Any other comments?

#### Checklist

<details>
  <summary>
   Checklist for code changes...
  </summary>
 
- [ ] Have you updated the relevant docstrings, documentation and
copyright notice?
- [ ] Is this contribution tested against [all ArcticDB's
features](../docs/mkdocs/docs/technical/contributing.md)?
- [ ] Do all exceptions introduced raise appropriate [error
messages](https://docs.arcticdb.io/error_messages/)?
 - [ ] Are API changes highlighted in the PR description?
- [ ] Is the PR labelled as enhancement or bug so it appears in
autogenerated release notes?
</details>

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Author: ognyanstoimenov

.github/PULL_REQUEST_TEMPLATE.md

@@ -3,12 +3,6 @@
 
 #### What does this implement or fix?
 
-## Change Type (Required)
-- [ ] **Patch** (Bug fix or non-breaking improvement)
-- [ ] **Minor** (New feature, but backward compatible)
-- [ ] **Major** (Breaking changes)
-- [ ] **Cherry pick**
-
 #### Any other comments?
 
 #### Checklist

.github/workflows/automated_release.calculate_next_version.yml

@@ -48,9 +48,9 @@ jobs:
         id: get_increment_type
         env:
           PULL_REQUESTS: ${{ steps.pull_requests.outputs.pull_requests }}
-          MAJOR_LABEL: major
-          MINOR_LABEL: minor
-          PATCH_LABEL: patch
+          MAJOR_LABEL: "api break"
+          MINOR_LABEL: "enhancement"
+          PATCH_LABEL: "bug"
         run: |
           if [ -z "$PULL_REQUESTS" ]; then
             echo "Error: No PRs found between branches" && exit 1

.github/workflows/automated_release.check_pr_labels.yml

@@ -0,0 +1,21 @@
+name: Check Pull Request Labels
+on:
+  pull_request:
+    types: [opened, labeled, unlabeled, synchronize]
+    branches: master
+jobs:
+  check_labels:
+    runs-on: ubuntu-latest
+    permissions:
+      issues: write
+      pull-requests: write
+    steps:
+      - uses: mheap/github-action-required-labels@v5
+        with:
+          mode: exactly
+          count: 1
+          labels: |
+            patch
+            minor
+            major
+          add_comment: true

.github/workflows/automated_release.create_release_branch.yml

@@ -33,13 +33,16 @@ jobs:
   create-next-release-branch:
     needs: [calculate-next-version, get-master-sha]
     runs-on: ubuntu-latest
+    environment: TestPypi # For the branch restrictions token
+    permissions:
+      contents: write
     outputs:
       new_branch: ${{ needs.calculate-next-version.outputs.version }}
     steps:
     - name: Create branch ${{ needs.calculate-next-version.outputs.version }} from ${{ needs.get-master-sha.outputs.sha }}
       uses: peterjgrainger/[email protected]
       env:
-        GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+        GITHUB_TOKEN: ${{ secrets.TAGGING_TOKEN }}
       with:
         branch: ${{ needs.calculate-next-version.outputs.version }}
         sha: ${{ needs.get-master-sha.outputs.sha }}

.github/workflows/automated_release.parse_pr_template.yml

@@ -48,7 +48,7 @@ jobs:
 
       - id: changelog
         name: Release Changelog Builder
-        uses: mikepenz/release-changelog-builder-action@v3.7.3
+        uses: mikepenz/release-changelog-builder-action@v5
         env:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
         with:

.github/workflows/publish.yml

@@ -1,12 +1,16 @@
 {
 "categories": [
+    {
+        "title": "## ⚠️ Breaking Changes",
+        "labels": ["api break", "major"]
+    },
     {
         "title": "## 🚀 Features",
-        "labels": ["enhancement"]
+        "labels": ["enhancement", "minor"]
     },
     {
         "title": "## 🐛 Fixes",
-        "labels": ["bug"]
+        "labels": ["bug", "patch"]
     }
 ],
 "pr_template": "- ${{TITLE}} (#${{NUMBER}})",

build_tooling/change_log.json

@@ -64,7 +64,6 @@ plugins:
             group_by_category: true
             docstring_options:
               ignore_init_summary: false
-              allow_section_blank_line: true
             docstring_section_style: spacy
             heading_level: 2
             inherited_members: true