Commit the contents as of the tag to the release branch at release time

.github/workflows/upload.yml

@@ -34,6 +34,31 @@ jobs:
         env:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
 
+      - name: Set up Git
+        run: |
+          git config --global user.name 'github-actions[bot]'
+          git config --global user.email 'github-actions[bot]@users.noreply.github.com'
+    
+      - name: Create or switch to release branch
+        run: |
+          git checkout -B release
+
+      - name: Copy files from tag
+        run: |
+          TAG_NAME=$(git describe --tags --abbrev=0)
+          git checkout $TAG_NAME -- .
+    
+      - name: Commit changes
+        run: |
+          git add -A
+          git commit -m "Update release branch to $TAG_NAME"
+    
+      - name: Push to release branch
+        run: |
+          git push origin release --force
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+
       - name: Set up Python
         uses: actions/setup-python@v5
         with: