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@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] <support@github.com>

.github/workflows/build_and_deploy.yaml

@@ -29,7 +29,7 @@ jobs:
 
             # see https://github.com/JamesIves/github-pages-deploy-action
             - name: Deploy 🚀
-              uses: JamesIves/github-pages-deploy-action@v4.6.4
+              uses: JamesIves/github-pages-deploy-action@v4.6.8
               with:
                   folder: build