ci: go mod tidy after updating golang version

[medyagh]

when trying to update go to 1.25 it did change the go mod causing a lint error.
it is a good practice to go mod tidy after bumping go mod version

[k8s-ci-robot]

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[k8s-ci-robot]

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

Test name	Commit	Details	Required	Rerun command
integration-kvm-containerd-linux-x86-64	bb23c90	link	true	/test integration-kvm-containerd-linux-x86-64
integration-kvm-crio-linux-x86-64	bb23c90	link	true	/test integration-kvm-crio-linux-x86-64
integration-docker-containerd-linux-x86-64	bb23c90	link	true	/test integration-docker-containerd-linux-x86-64

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