Bump react-activity-calendar from 2.1.8 to 2.2.0

Bumps [react-activity-calendar](https://github.com/grubersjoe/react-activity-calendar) from 2.1.8 to 2.2.0.
- [Release notes](https://github.com/grubersjoe/react-activity-calendar/releases)
- [Commits](https://github.com/grubersjoe/react-activity-calendar/commits/v2.2)

---
updated-dependencies:
- dependency-name: react-activity-calendar
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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