build(deps): bump actions/cache from 4 to 5

Bumps [actions/cache](https://github.com/actions/cache) from 4 to 5.
- [Release notes](https://github.com/actions/cache/releases)
- [Changelog](https://github.com/actions/cache/blob/main/RELEASES.md)
- [Commits](actions/cache@v4...v5)

---
updated-dependencies:
- dependency-name: actions/cache
  dependency-version: '5'
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

.github/workflows/pull-request.yml

@@ -53,7 +53,7 @@ jobs:
           npm-email: ${{ secrets.NODE_EMAIL }}
 
       - name: Cache npm dependencies
-        uses: actions/cache@v4
+        uses: actions/cache@v5
         with:
           path: ~/.npm
           key: ${{ runner.os }}-npm-${{ hashFiles('**/package-lock.json') }}
@@ -97,7 +97,7 @@ jobs:
           npm-email: ${{ secrets.NPM_EMAIL }}
 
       - name: Cache Playwright browsers
-        uses: actions/cache@v4
+        uses: actions/cache@v5
         with:
           path: ~/.cache/ms-playwright
           key: ${{ runner.os }}-playwright-${{ needs.get-playwright-version.outputs.version }}