CI: update github pages action versions

This commit updates the github pages actions to versions which use
supported nodejs versions and are generally up to date.
This fixes all the warnings in the github actions panel.

Also allows the special branch `fixOnlineDemo` to be used to test github
pages deployment without having to merge the PR, by also publishing it
to github pages.

.github/workflows/build_cmake.yml

@@ -107,26 +107,26 @@ jobs:
       run: cmake --build . --target opendigitizer_coverage
 
     - name: Setup Pages
-      uses: actions/configure-pages@v3
+      uses: actions/configure-pages@v5
     - name: "Fetch cors header workaround" # we're unable to set custom headers on github pages, workaround according to: https://stackoverflow.com/a/68675301
       run: |
         npm i --save coi-serviceworker
         cp node_modules/coi-serviceworker/coi-serviceworker.js ../build/CMakeExternals/Build/ui-wasm/web/
         sed -e "s%</style>%</style><script src=\"coi-serviceworker.js\"></script>%" -i ../build/CMakeExternals/Build/ui-wasm/web/index.html
     - name: Upload artifact
-      uses: actions/upload-pages-artifact@v1
+      uses: actions/upload-pages-artifact@v3
       with:
         path: '../build/CMakeExternals/Build/ui-wasm/web/'
 
   deploy_pages:
     name: Deploy to GitHub Pages
-    if: ${{ github.ref_name == 'main' && github.event_name == 'push' }}
+    if: ${{ (github.ref_name == 'main' || github.ref_name == 'fixOnlineDemo') && github.event_name == 'push' }}
     environment: github-pages
     runs-on: ubuntu-latest
     needs: build
     steps:
     - name: "Setup Pages"
-      uses: actions/configure-pages@v3
+      uses: actions/configure-pages@v5
     - name: "Deploy to pages"
       id: deployment
-      uses: actions/deploy-pages@v2
+      uses: actions/deploy-pages@v4