ci: update codecov actions to use pnpm/action-setup@v3

Author: d34dman

.github/workflows/codecov.yml

@@ -9,13 +9,12 @@ jobs:
     runs-on: ubuntu-latest
     name: Test drupal-jsonapi-params
     steps:
-    - uses: actions/checkout@v1
-    - uses: actions/setup-node@v2
-      with:
-        node-version: '16'
+    - uses: actions/checkout@v3
+    - name: Setup pnpm
+      uses: pnpm/action-setup@v3
     - name: Install requirements
-      run: npm install
+      run: pnpm install
     - name: Run tests and collect coverage
-      run: npm run test
+      run: pnpm run test
     - name: Upload coverage reports to Codecov with GitHub Action
       uses: codecov/codecov-action@v2