Bump stefanzweifel/git-auto-commit-action from 4 to 5 (#199)

Author: dependabot[bot]

.github/workflows/ci.yml

@@ -41,7 +41,7 @@ jobs:
         preface: src/preface.txt
         output: style.md
 
-    - uses: stefanzweifel/git-auto-commit-action@v4
+    - uses: stefanzweifel/git-auto-commit-action@v5
       if: ${{ github.event_name == 'pull_request_target' }}
       with:
         file_pattern: style.md