Update dependency golang to v1.21.1

This MR contains the following updates:

Package	Update	Change	Pending
golang	minor	1.20.7 -> 1.21.1	1.21.2

MR created with the help of gitlab-org/frontend/renovate-gitlab-bot

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Release Notes

golang/go

v1.21.1

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v1.21.0

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v1.20.9

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v1.20.8

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