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/coq-docker.yml

@@ -334,7 +334,7 @@ jobs:
     - name: backup .gitignore
       run: mv .gitignore{,.bak}
     - name: Deploy js_of_ocaml and wasm_of_ocaml 🚀 ${{ ( github.ref != 'refs/heads/master' && '(dry run)' ) || '' }}
-      uses: JamesIves/github-pages-deploy-action@v4.6.4
+      uses: JamesIves/github-pages-deploy-action@v4.6.8
       with:
         branch: gh-pages # The branch the action should deploy to.
         folder: fiat-html # The folder the action should deploy.

.github/workflows/deploy-html-fast.yml

@@ -17,7 +17,7 @@ jobs:
     - name: backup .gitignore
       run: mv .gitignore{,.bak}
     - name: Deploy js_of_ocaml 🚀 ${{ ( github.ref != 'refs/heads/master' && '(dry run)' ) || '' }}
-      uses: JamesIves/github-pages-deploy-action@v4.6.4
+      uses: JamesIves/github-pages-deploy-action@v4.6.8
       with:
         branch: gh-pages # The branch the action should deploy to.
         folder: fiat-html # The folder the action should deploy.