Bump superdesk-planning from d7abac0 to 90a2176 in /client

Bumps [superdesk-planning](https://github.com/superdesk/superdesk-planning) from `d7abac0` to `90a2176`.
- [Release notes](https://github.com/superdesk/superdesk-planning/releases)
- [Commits](superdesk/superdesk-planning@d7abac0...90a2176)

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

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