ci: update test command in GitHub Actions workflow to use pnpm

Author: manudeli

.github/workflows/pr.yml

@@ -113,11 +113,4 @@ jobs:
       - name: Derive appropriate SHAs for base and head for `nx affected` commands
         uses: nrwl/nx-set-shas@v2
       - name: Run Tests
-        uses: nick-fields/[email protected]
-        with:
-          timeout_minutes: 5
-          max_attempts: 3
-          command: npx nx affected --targets=test:lib --base=${{ github.event.pull_request.base.sha }}
-        env:
-          NX_CLOUD_DISTRIBUTED_EXECUTION: false
-          REACTJS_VERSION: 17
+        run: pnpm run test:lib