fix(deps): update module golang.org/x/sys to v0.21.0

[renovate-bot]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
golang.org/x/sys	v0.19.0 -> v0.21.0

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[google-oss-prow]

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[forking-renovate]

ℹ Artifact update notice

File name: go.mod

In order to perform the update(s) described in the table above, Renovate ran the go get command, which resulted in the following additional change(s):

• The go directive was updated for compatibility reasons

Details:

Package	Change
go	1.22 -> 1.22.4