Chore(deps-dev): Bump nextcloud/coding-standard in /vendor-bin/csfixer

Bumps [nextcloud/coding-standard](https://github.com/nextcloud/coding-standard) from 1.1.0 to 1.2.1.
- [Release notes](https://github.com/nextcloud/coding-standard/releases)
- [Changelog](https://github.com/nextcloud/coding-standard/blob/master/CHANGELOG.md)
- [Commits](nextcloud/coding-standard@v1.1.0...v1.2.1)

---
updated-dependencies:
- dependency-name: nextcloud/coding-standard
  dependency-type: direct:development
  update-type: version-update:semver-minor
...

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