Bump newsroom-core from v2.8.1 to v2.8.2 in /client

Bumps [newsroom-core](https://github.com/superdesk/newsroom-core) from v2.8.1 to v2.8.2.
- [Release notes](https://github.com/superdesk/newsroom-core/releases)
- [Changelog](https://github.com/superdesk/newsroom-core/blob/develop/CHANGELOG.md)
- [Commits](superdesk/newsroom-core@df9c501...1b11de9)

---
updated-dependencies:
- dependency-name: newsroom-core
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <[email protected]>