Add oomkilled reason

[infernus01]

Changes

This PR improves the error reporting for TaskRuns that fail due to Out of Memory (OOM) conditions. The changes modify the extractContainerFailureMessage function in pkg/pod/status.go to include the termination reason in the failure message when a container is OOMKilled.
Fix jira #SRVKP-7343

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Release Notes

TaskRuns that fail due to Out of Memory (OOM) conditions will now show the termination reason in their failure message.

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Test name	Commit	Details	Required	Rerun command
check-pr-has-kind-label	2eb7e4b	link	true	/test check-pr-has-kind-label