Bump stefanzweifel/git-auto-commit-action from 4 to 5

Bumps [stefanzweifel/git-auto-commit-action](https://github.com/stefanzweifel/git-auto-commit-action) from 4 to 5.
- [Release notes](https://github.com/stefanzweifel/git-auto-commit-action/releases)
- [Changelog](https://github.com/stefanzweifel/git-auto-commit-action/blob/master/CHANGELOG.md)
- [Commits](stefanzweifel/git-auto-commit-action@v4...v5)

---
updated-dependencies:
- dependency-name: stefanzweifel/git-auto-commit-action
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <[email protected]>

.github/workflows/panvimdoc.yml

@@ -22,7 +22,7 @@ jobs:
           ignorerawblocks: true # Ignore raw html blocks in markdown when converting to vimdoc
           docmapping: false # Use h4 headers as mapping docs
           docmappingprojectname: true # Use project name in tag when writing mapping docs
-      - uses: stefanzweifel/git-auto-commit-action@v4
+      - uses: stefanzweifel/git-auto-commit-action@v5
         with:
           commit_message: "Auto generate docs"
           branch: ${{ github.head_ref }}