Bump stefanzweifel/git-auto-commit-action from 4 to 6

Bumps [stefanzweifel/git-auto-commit-action](https://github.com/stefanzweifel/git-auto-commit-action) from 4 to 6.
- [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...v6)

---
updated-dependencies:
- dependency-name: stefanzweifel/git-auto-commit-action
  dependency-version: '6'
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

Author: dependabot[bot]

.github/workflows/fix-styling.yml

@@ -19,6 +19,6 @@ jobs:
         uses: aglipanci/[email protected]
 
       - name: Commit changes
-        uses: stefanzweifel/git-auto-commit-action@v4
+        uses: stefanzweifel/git-auto-commit-action@v6
         with:
           commit_message: Fix styling

.github/workflows/update-changelog.yml

@@ -21,7 +21,7 @@ jobs:
           release-notes: ${{ github.event.release.body }}
 
       - name: Commit updated CHANGELOG
-        uses: stefanzweifel/git-auto-commit-action@v4
+        uses: stefanzweifel/git-auto-commit-action@v6
         with:
           branch: main
           commit_message: Update CHANGELOG