fix(contentDeploy): install deps for e2e tests

Co-authored-by: Sanny Nguyen Hung <sanny.nguyen@digitalservice.bund.de>

.github/workflows/build-content.yml

@@ -33,6 +33,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v4
+      - uses: ./.github/actions/cached-checkout-install
       - name: Get Playwright version
         run: echo "PLAYWRIGHT_VERSION=$(node -e "console.log(require('./package-lock.json').packages[''].devDependencies['@playwright/test'])")" >> $GITHUB_ENV