Switch from golang 1.22rc2 to 1.22 final

[dims]

Looks like these got missed perhaps?

cc @cpanato @ameukam @kubernetes/release-engineering

What type of PR is this?

/kind cleanup

What this PR does / why we need it:

Which issue(s) this PR fixes:

Special notes for your reviewer:

Does this PR introduce a user-facing change?

NONE

[dims]

/assign @xmudrii @ameukam @saschagrunert

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@dims: The following test failed, say /retest to rerun all failed tests or /retest-required to rerun all mandatory failed tests:

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pull-release-image-k8s-ci-builder	e38388f	link	true	/test pull-release-image-k8s-ci-builder

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[dims]

#6 26.83 /go/pkg/mod/github.com/saschagrunert/[email protected]/pkg/modiff/modiff.go:9:2: package slices is not in GOROOT (/usr/local/go/src/slices)
#6 26.83 note: imported by a module that requires go 1.21

looks like this is not a quick fix. will leave it to the specialists :)