chore(deps): update dependency golang/tools/goimports to v0.21.0

[renovate[bot]]

This PR contains the following updates:

Package	Update	Change
golang/tools/goimports	minor	v0.20.0 -> v0.21.0

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Release Notes

golang/tools (golang/tools/goimports)

### [`v0.21.0`](https://togithub.com/golang/tools/compare/v0.20.0...v0.21.0) [Compare Source](https://togithub.com/golang/tools/compare/v0.20.0...v0.21.0)

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