update retry because of deprecation notice

Author: timwright12

.github/workflows/pr-checks.yml

@@ -48,7 +48,7 @@ jobs:
       # cache playwright browsers to speed up workflow
       - name: Cache Playwright browsers
         id: cache-playwright
-        uses: actions/cache@v4
+        uses: actions/cache@v5
         with:
           path: ~/.cache/ms-playwright
           key: playwright-${{ runner.os }}-${{ hashFiles('**/package-lock.json') }}