chore(deps): bump actions/upload-artifact from 4 to 6

Bumps [actions/upload-artifact](https://github.com/actions/upload-artifact) from 4 to 6.
- [Release notes](https://github.com/actions/upload-artifact/releases)
- [Commits](actions/upload-artifact@v4...v6)

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

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

Author: dependabot[bot]

.github/workflows/test-e2e.yml

@@ -133,7 +133,7 @@ jobs:
 
       - name: Upload blob report
         if: always()
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v6
         with:
           name: blob-report-${{ matrix.shardIndex }}
           path: apps/web/blob-report/
@@ -170,7 +170,7 @@ jobs:
         run: npx playwright merge-reports --reporter html ./all-blob-reports
 
       - name: Upload merged report
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v6
         with:
           name: playwright-report
           path: apps/web/playwright-report/