Maintenance: Bump deprecation_toolkit from 1.5.1 to 2.0.0
Maintenance: Bump deprecation_toolkit from 1.5.1 to 2.0.0

Bumps [deprecation_toolkit](https://github.com/shopify/deprecation_toolkit) from 1.5.1 to 2.0.0.
- [Release notes](https://github.com/shopify/deprecation_toolkit/releases)
- [Changelog](https://github.com/Shopify/deprecation_toolkit/blob/main/CHANGELOG.md)
- [Commits](https://github.com/shopify/deprecation_toolkit/compare/v1.5.1...v2.0.0)
zammad/zammad,monotek/zammad,monotek/zammad,monotek/zammad,monotek/zammad,monotek/zammad,zammad/zammad,monotek/zammad,zammad/zammad,zammad/zammad,zammad/zammad,zammad/zammad