Bumps [github.com/golang/mock](https://github.com/golang/mock) from 1.4.4 to 1.5.0.
- [Release notes](https://github.com/golang/mock/releases)
- [Changelog](https://github.com/golang/mock/blob/master/.goreleaser.yml)
- [Commits](https://github.com/golang/mock/compare/v1.4.4...v1.5.0)

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