Update stop server script, trying cacheing playerwright browsers

.github/workflows/content-sources-actions.yml

@@ -171,6 +171,15 @@ jobs:
         working-directory: content-sources-frontend
         run: yarn install
 
+      - name: Cache Playwright browsers
+        id: cache-playwright-browsers
+        uses: actions/cache@v3
+        with:
+          path: ~/.cache/ms-playwright
+          key: ${{ runner.os }}-playwright-${{ hashFiles('**/package-lock.json') }}
+          restore-keys: |
+            ${{ runner.os }}-playwright-
+
       - name: Install front-end Playwright Browsers
         working-directory: content-sources-frontend
         run: yarn playwright install --with-deps
@@ -198,8 +207,13 @@ jobs:
         working-directory: content-sources-frontend
         if: always() # Ensures this step runs even if previous steps fail
         run: |
-          ps aux | grep 'yarn start:stage' | grep -v grep | awk '{print $2}' | xargs kill -9
-
+          PIDS=$(ps aux | grep 'yarn start:stage' | grep -v grep | awk '{print $2}')
+          echo "PIDs to kill: $PIDS"
+          if [ -n "$PIDS" ]; then
+            kill -9 $PIDS
+          else
+            echo "No PIDs found to kill"
+          fi
       # - name: Run front-end Playwright tests
       #   working-directory: content-sources-frontend
       #   run: yarn playwright test