[Sajal-ui]

What type of PR is this?

/kind bug

What this PR does / why we need it:

Use a monotonic clock for the one-minute projected service-account token re-read deadline in both in-cluster config loaders. Backward wall-clock changes can otherwise delay token re-reads and cause authentication failures.

Special notes for your reviewer:

All 24 sync and async in-cluster config tests passed locally. The updated tests verify that the cached token is used before the deadline and the rotated token is picked up at the deadline.

Does this PR introduce a user-facing change?

Backward wall-clock changes no longer delay service-account token refresh in the synchronous or asynchronous in-cluster client.

[linux-foundation-easycla]

• ❌ - login: @Sajalpathak / name: Sajal-ui. The commit (03b1716) is not authorized under a signed CLA. Please click here to be authorized. For further assistance with EasyCLA, please visit our EasyCLA portal and chat with our support bot.

[kubernetes-prow]

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[kubernetes-prow]

[APPROVALNOTIFIER] This PR is NOT APPROVED

This pull-request has been approved by: Sajal-ui
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[Sajal-ui]

Why is my PR not approved despite my signing the EasyCLA doc?

[roycaihw]

Please sign the CLA.