Update build.yml

Author: RandomModderJDK

.github/workflows/build.yml

@@ -74,11 +74,17 @@ jobs:
       - uses: subosito/flutter-action@v2
         with:
           cache: true
-          
       - run: flutter pub get
       - name: Run altstore-github
         run: npx github:randommodderjdk/altstore-github --config web/altstore.template.json > web/altstore.json
-
+      
+      - name: Cache npm dependencies
+        uses: actions/cache@v2
+        with:
+          path: '~/.npm'
+          key: ${{ runner.os }}-node-${{ hashFiles('**/package-lock.json') }}
+          restore-keys: |
+            ${{ runner.os }}-node-
       # Implement this troguh other action - run: dart run sqflite_common_ffi_web:setup
       - name: Deploy
         uses: bluefireteam/flutter-gh-pages@v9