Bump JamesIves/github-pages-deploy-action from 4.6.3 to 4.6.4

Bumps [JamesIves/github-pages-deploy-action](https://github.com/jamesives/github-pages-deploy-action) from 4.6.3 to 4.6.4.
- [Release notes](https://github.com/jamesives/github-pages-deploy-action/releases)
- [Commits](JamesIves/github-pages-deploy-action@94f3c65...920cbb3)

---
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]>

Author: dependabot[bot]

.github/workflows/ci.yml

@@ -18,7 +18,7 @@ jobs:
     - run: bundle install
     - run: bundle exec middleman build
     - if: ${{ github.repository_owner == 'scalikejdbc' && github.ref == 'refs/heads/develop' && github.event_name == 'push' }}
-      uses: JamesIves/github-pages-deploy-action@94f3c658273cf92fb48ef99e5fbc02bd2dc642b2 # v4.6.3
+      uses: JamesIves/github-pages-deploy-action@920cbb300dcd3f0568dbc42700c61e2fd9e6139c # v4.6.4
       with:
         GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
         BRANCH: master