i need pnpm to use pnpm

Signed-off-by: nicole mikołajczyk <git@mkljczk.pl>

.github/workflows/pl-api.yaml

@@ -21,10 +21,16 @@ jobs:
     - name: Checkout code
       uses: actions/checkout@v3
 
+    - name: Setup pnpm
+      uses: pnpm/action-setup@v4
+      with:
+        version: 10
+
     - name: Use Node.js ${{ matrix.node-version }}
       uses: actions/setup-node@v3
       with:
         node-version: ${{ matrix.node-version }}
+        cache: 'pnpm'
 
     - name: Install deps
       working-directory: .