Bump @nextcloud/event-bus from 0.2.1 to 1.0.0

Bumps [@nextcloud/event-bus](https://github.com/nextcloud/nextcloud-event-bus) from 0.2.1 to 1.0.0.
- [Release notes](https://github.com/nextcloud/nextcloud-event-bus/releases)
- [Commits](https://github.com/nextcloud/nextcloud-event-bus/compare/v0.2.1...v1.0.0

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