Add release notes generation and publishing workflow (#9255)

.github/workflows/main_matrix.yml

@@ -247,6 +247,24 @@ jobs:
     steps:
       - name: Checkout
         uses: actions/checkout@v6
+        with:
+          fetch-depth: 0
+
+      - name: Setup Python
+        uses: actions/setup-python@v6
+        with:
+          python-version: 3.x
+
+      - name: Generate release notes
+        id: release_notes
+        run: |
+          chmod +x ./bin/generate_release_notes.py
+          NOTES=$(./bin/generate_release_notes.py ${{ needs.version.outputs.long }})
+          echo "notes<<EOF" >> $GITHUB_OUTPUT
+          echo "$NOTES" >> $GITHUB_OUTPUT
+          echo "EOF" >> $GITHUB_OUTPUT
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
 
       - name: Create release
         uses: softprops/action-gh-release@v2
@@ -256,8 +274,7 @@ jobs:
           prerelease: true
           name: Meshtastic Firmware ${{ needs.version.outputs.long }} Alpha
           tag_name: v${{ needs.version.outputs.long }}
-          body: |
-            Autogenerated by github action, developer should edit as required before publishing...
+          body: ${{ steps.release_notes.outputs.notes }}
 
       - name: Download source deb
         uses: actions/download-artifact@v7
@@ -381,6 +398,8 @@ jobs:
     steps:
       - name: Checkout
         uses: actions/checkout@v6
+        with:
+          fetch-depth: 0
 
       - name: Setup Python
         uses: actions/setup-python@v6
@@ -400,6 +419,13 @@ jobs:
           pattern: manifest-${{ needs.version.outputs.long }}
           path: ./publish
 
+      - name: Generate release notes
+        run: |
+          chmod +x ./bin/generate_release_notes.py
+          ./bin/generate_release_notes.py ${{ needs.version.outputs.long }} > ./publish/release_notes.md
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+
       - name: Publish firmware to meshtastic.github.io
         uses: peaceiris/actions-gh-pages@v4
         env: