Bump up golang.org version to 0.39

[Sneha-at]

What type of PR is this?

Uncomment only one /kind <> line, hit enter to put that in a new line, and remove leading whitespaces from that line:

/kind bug

What this PR does / why we need it:
Bumps up golang.org version to fix CVE-2025-22872
Which issue(s) this PR fixes:

Fixes #

Special notes for your reviewer:

Does this PR introduce a user-facing change?:

Bumps up golang.org/xnet version to fix CVE-2025-22872 

[Sneha-at]

/test pull-gcp-compute-persistent-disk-csi-driver-e2e

[sunnylovestiramisu]

/lgtm
/approve

[mattcary]

/ok-to-test
/lgtm
/approve

[k8s-ci-robot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: mattcary, Sneha-at, sunnylovestiramisu

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• OWNERS [mattcary,sunnylovestiramisu]

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[k8s-ci-robot]

@Sneha-at: 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
pull-gcp-compute-persistent-disk-csi-driver-e2e-windows-2019	88e1325	link	false	/test pull-gcp-compute-persistent-disk-csi-driver-e2e-windows-2019
pull-gcp-compute-persistent-disk-csi-driver-e2e-windows-2022	88e1325	link	false	/test pull-gcp-compute-persistent-disk-csi-driver-e2e-windows-2022

Full PR test history. Your PR dashboard. Please help us cut down on flakes by linking to an open issue when you hit one in your PR.

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