ci: bump actions/upload-artifact from 5.0.0 to 6.0.0 (#18824)

Bumps [actions/upload-artifact](https://github.com/actions/upload-artifact) from 5.0.0 to 6.0.0.
- [Release notes](https://github.com/actions/upload-artifact/releases)
- [Commits](https://github.com/actions/upload-artifact/compare/330a01c490aca151604b8cf639adc76d48f6c5d4...b7c566a772e6b6bfb58ed0dc250532a479d7789f)

---
updated-dependencies:
- dependency-name: actions/upload-artifact
  dependency-version: 6.0.0
  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>

.github/workflows/ci-api-docs.yml

@@ -55,7 +55,7 @@ jobs:
         env:
           NODE_ENV: production
         run: npm run build -w api
-      - uses: actions/upload-artifact@330a01c490aca151604b8cf639adc76d48f6c5d4 # v4
+      - uses: actions/upload-artifact@b7c566a772e6b6bfb58ed0dc250532a479d7789f # v4
         with:
           name: api-docs
           path: website/api/build