Auto merge of rust-lang#17180 - lnicola:bump-gh-pages, r=lnicola

minor: bump `peaceiris/actions-gh-pages`

Author: bors

src/tools/rust-analyzer/.github/workflows/rustdoc.yaml

@@ -26,7 +26,7 @@ jobs:
       run: cargo doc --all --no-deps
 
     - name: Deploy Docs
-      uses: peaceiris/actions-gh-pages@364c31d33bb99327c77b3a5438a83a357a6729ad # v3.4.0
+      uses: peaceiris/actions-gh-pages@4f9cc6602d3f66b9c108549d475ec49e8ef4d45e # v4.0.0
       with:
         github_token: ${{ secrets.GITHUB_TOKEN }}
         publish_branch: gh-pages