Bump JamesIves/github-pages-deploy-action from 4.8.0 to 4.9.0

Bumps [JamesIves/github-pages-deploy-action](https://github.com/jamesives/github-pages-deploy-action) from 4.8.0 to 4.9.0.
- [Release notes](https://github.com/jamesives/github-pages-deploy-action/releases)
- [Commits](JamesIves/github-pages-deploy-action@v4.8.0...v4.9.0)

---
updated-dependencies:
- dependency-name: JamesIves/github-pages-deploy-action
  dependency-version: 4.9.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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Author: dependabot[bot]

.github/workflows/docs.yml

@@ -24,7 +24,7 @@ jobs:
       - name: Run Tox
         run: tox -e docs
       - name: Publish
-        uses: JamesIves/github-pages-deploy-action@v4.8.0
+        uses: JamesIves/github-pages-deploy-action@v4.9.0
         with:
           branch: gh-pages
           folder: docs/_build/html