Bump JamesIves/github-pages-deploy-action from 4.6.4 to 4.6.8

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@920cbb3...881db53)

---
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

@@ -64,7 +64,7 @@ jobs:
     - run: sbt makeSite
     - name: Push to gh-pages
       if: ${{ github.repository_owner == 'foundweekends' && github.ref == 'refs/heads/master' && github.event_name == 'push' }}
-      uses: JamesIves/github-pages-deploy-action@920cbb300dcd3f0568dbc42700c61e2fd9e6139c # v4.6.4
+      uses: JamesIves/github-pages-deploy-action@881db5376404c5c8d621010bcbec0310b58d5e29 # v4.6.8
       with:
         GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
         BRANCH: gh-pages