Bump actions/cache from 5 to 6 (#1222)

Bumps [actions/cache](https://github.com/actions/cache) from 5 to 6.
- [Release notes](https://github.com/actions/cache/releases)
- [Changelog](https://github.com/actions/cache/blob/main/RELEASES.md)
- [Commits](actions/cache@v5...v6)

---
updated-dependencies:
- dependency-name: actions/cache
  dependency-version: '6'
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

.github/workflows/main.yml

@@ -221,7 +221,7 @@ jobs:
         working-directory: ./ui/menu-website
 
       - name: Cache pnpm store
-        uses: actions/cache@v5
+        uses: actions/cache@v6
         with:
           path: ${{ steps.pnpm-cache.outputs.STORE_PATH }}
           key: ${{ runner.os }}-pnpm-store-${{ hashFiles('ui/menu-website/pnpm-lock.yaml', 'ui/menu-website/package.json') }}
@@ -252,7 +252,7 @@ jobs:
         working-directory: ./ui/menu-website
 
       - name: Cache Playwright browsers
-        uses: actions/cache@v5
+        uses: actions/cache@v6
         id: playwright-cache
         with:
           path: ~/.cache/ms-playwright