Update app-build.yml

Author: mansouralawi

.github/workflows/app-build.yml

@@ -28,6 +28,7 @@ jobs:
       - name: Install Dependencies
         run: |
           cd client
+          npm install -g npm@latest
           npm install
 
       - name: Install and start Xvfb
@@ -53,4 +54,4 @@ jobs:
           else
             echo 'Electron app has exited.'
             exit 1
-          fi
+          fi