chore(deps): pin peaceiris/actions-gh-pages action to (#5642)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

.github/workflows/docs.yaml

@@ -62,7 +62,7 @@ jobs:
           private-key: "${{ secrets.BOT_APP_PRIVATE_KEY }}"
 
       - name: Deploy to GitHub Pages
-        uses: peaceiris/[email protected]
+        uses: peaceiris/actions-gh-pages@373f7f263a76c20808c831209c920827a82a2847 # v3.9.3
         if: ${{ github.ref == 'refs/heads/main' }}
         with:
           github_token: ${{ steps.app-token.outputs.token }}