ci(config): Add packageManager field

Author: olaf-cichocki

.github/workflows/pull-request.yml

@@ -10,6 +10,8 @@ jobs:
       matrix:
         version: [14, 16, 18]
     steps:
+      - uses: actions/checkout@v4
+
       - name: Setup pnpm
         uses: pnpm/action-setup@v4
 
@@ -19,8 +21,6 @@ jobs:
           node-version: ${{ matrix.version }}
           cache: 'pnpm'
 
-      - uses: actions/checkout@v4
-
       - name: Installing dependencies
         run: pnpm install --frozen-lockfile