build(deps): bump JamesIves/github-pages-deploy-action

Bumps [JamesIves/github-pages-deploy-action](https://github.com/jamesives/github-pages-deploy-action) from 4.6.4 to 4.6.8.
- [Release notes](https://github.com/jamesives/github-pages-deploy-action/releases)
- [Commits](JamesIves/github-pages-deploy-action@v4.6.4...v4.6.8)

---
updated-dependencies:
- dependency-name: JamesIves/github-pages-deploy-action
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

.github/workflows/generate-docs.yml

@@ -55,7 +55,7 @@
             # we only deploy on push to main
             if: |
               github.event_name == 'push' && github.event.ref == 'refs/heads/main'
-            uses: JamesIves/[email protected].4
+            uses: JamesIves/[email protected].8
             with:
               GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
               BRANCH: gh-pages # The branch the action should deploy to.