Bump newsroom-core from e464aad to 2f9750c in /client

Bumps [newsroom-core](https://github.com/superdesk/newsroom-core) from `e464aad` to `2f9750c`.
- [Release notes](https://github.com/superdesk/newsroom-core/releases)
- [Commits](superdesk/newsroom-core@e464aad...2f9750c)

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

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