Bump newsroom-core from e16c38c to 7cc1f6f in /client

Bumps [newsroom-core](https://github.com/superdesk/newsroom-core) from `e16c38c` to `7cc1f6f`.
- [Release notes](https://github.com/superdesk/newsroom-core/releases)
- [Commits](superdesk/newsroom-core@e16c38c...7cc1f6f)

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

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