Update dependencies

Author: martinthomson

.github/workflows/deploy.yml

@@ -8,12 +8,12 @@ jobs:
   build:
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v2
-    - uses: actions/setup-python@v2
+    - uses: actions/checkout@v4
+    - uses: actions/setup-python@v5
     - run: pip install bikeshed
     - run: bikeshed update
     - run: make publish
-    - uses: peaceiris/actions-gh-pages@v3
+    - uses: peaceiris/actions-gh-pages@v4
       with:
         github_token: ${{ secrets.GITHUB_TOKEN }}
         publish_dir: build