ci: cache Playwright browsers in workflow

Co-authored-by: gkorland <753206+gkorland@users.noreply.github.com>

Author: Copilot

.github/workflows/playwright.yml

@@ -47,7 +47,21 @@ jobs:
     - name: Install Playwright
       run: |
         npm ci
-        npx playwright install --with-deps
+
+    - name: Cache Playwright browsers
+      id: playwright-cache
+      uses: actions/cache@v4
+      with:
+        path: ~/.cache/ms-playwright
+        key: playwright-${{ runner.os }}-${{ hashFiles('package-lock.json') }}
+
+    - name: Install Playwright browsers
+      if: steps.playwright-cache.outputs.cache-hit != 'true'
+      run: npx playwright install --with-deps chromium firefox
+
+    - name: Install Playwright system deps
+      if: steps.playwright-cache.outputs.cache-hit == 'true'
+      run: npx playwright install-deps chromium firefox
 
     - name: Run Playwright tests
       env: