chore(deps): update go to v1.21.4

[renovate[bot]]

This PR contains the following updates:

Package	Type	Update	Change
go (source)	golang	patch	1.21.3 -> 1.21.4

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Release Notes

golang/go (go)

### [`v1.21.4`](https://togithub.com/golang/go/compare/go1.21.3...go1.21.4)

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