Bump superdesk-core from f5bec0d to b9fa01e in /client (#3363)

Bumps [superdesk-core](https://github.com/superdesk/superdesk-client-core) from `f5bec0d` to `b9fa01e`.
- [Release notes](https://github.com/superdesk/superdesk-client-core/releases)
- [Commits](superdesk/superdesk-client-core@f5bec0d...b9fa01e)

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

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