Bump actions/upload-artifact from 4 to 7

Bumps [actions/upload-artifact](https://github.com/actions/upload-artifact) from 4 to 7.
- [Release notes](https://github.com/actions/upload-artifact/releases)
- [Commits](https://github.com/actions/upload-artifact/compare/v4...v7)

---
updated-dependencies:
- dependency-name: actions/upload-artifact
  dependency-version: '7'
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

.github/workflows/playwright.yml

@@ -86,7 +86,7 @@ jobs:
           MAILPIT_BASE_URL: 'http://localhost:8025'
 
       - name: "Upload blob report"
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v7
         if: always()
         with:
           name: blob-report-${{ matrix.shardIndex }}
@@ -120,7 +120,7 @@ jobs:
         run: npx playwright merge-reports --reporter html ./all-blob-reports
 
       - name: "Upload merged HTML report"
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v7
         with:
           name: playwright-report
           path: playwright-report/