chore(deps): update peaceiris/actions-gh-pages action to v4

Author: renovate[bot]

.github/workflows/dotnet.yml

@@ -61,7 +61,7 @@ jobs:
       run: dotnet publish Demo.BlazorWasm/Demo.BlazorWasm.csproj --configuration Release --output dist
 
     - name: Deploy to GitHub Pages
-      uses: peaceiris/actions-gh-pages@v3
+      uses: peaceiris/actions-gh-pages@v4
       with:
         github_token: ${{ secrets.GITHUB_TOKEN }}
         publish_dir: ./dist/wwwroot