more npm install

Author: CedricGuillemet

.github/workflows/test_android.yml

@@ -23,7 +23,9 @@ jobs:
         working-directory: ./Apps/Playground
 
       - name: Gulp (Android)
-        run: npx gulp buildAndroid
+        run: |
+          npm install
+          npx gulp buildAndroid
         working-directory: ./Package
 
       - name: Upload APK

.github/workflows/test_ios.yml

@@ -30,5 +30,7 @@ jobs:
         working-directory: ./Apps/Playground
 
       - name: Gulp (iOS)
-        run: npx gulp buildIOS
+        run: |
+          npm install
+          npx gulp buildIOS
         working-directory: ./Package