Update manual-update-webinstaller.yaml

.github/workflows/manual-update-webinstaller.yaml

@@ -53,7 +53,7 @@ jobs:
       uses: actions/configure-pages@v2
 
     - name: Upload artifact
-      uses: actions/upload-pages-artifact@v1
+      uses: actions/upload-pages-artifact@v2
       with:
         path: 'docs'