Bump peter-evans/create-pull-request action to v8

Author: fkleedorfer

.github/workflows/release-and-deploy.yml

@@ -143,14 +143,9 @@ jobs:
           version: ${{ inputs.release_version }}
           operation: read
 
-      - name: Unset git extraheader (prevent duplicate Authorization)
-        run: |
-          git config --global --unset http.https://github.com/.extraheader || true
-          git config --local --unset http.https://github.com/.extraheader || true
-
       # create the pull request
       - name: Create Pull Request
-        uses: peter-evans/create-pull-request@v6
+        uses: peter-evans/create-pull-request@v8
         with:
           token: ${{ secrets.QUDTLIB_BOT_GITHUB_TOKEN }}
           title: Release ${{ inputs.release_version }}