Fix test flake by increasing time out for verifying metrics for mirror pods

[Karthik-K-N]

What type of PR is this?

/kind flake

What this PR does / why we need it:

We are expecting there should be no pods running during this test, In the previous fix #117000 its made sure thats valid.
I suspect there is some delay in metrics to be upto date.

The metrics validation is very aggressive here with only 5 seconds and where as other places in test where we call getKubeletMetrics waits for minimum of a minute. So waiting for more time should be able to fix this.

Which issue(s) this PR is related to:

Fixes #116998

Special notes for your reviewer:

Does this PR introduce a user-facing change?

NONE

Additional documentation e.g., KEPs (Kubernetes Enhancement Proposals), usage docs, etc.:

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This pull-request has been approved by: Karthik-K-N
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[Karthik-K-N]

/test pull-kubernetes-node-e2e-containerd-serial-ec2

[Karthik-K-N]

/cc @pacoxu @haircommander

[Karthik-K-N]

/test pull-kubernetes-node-e2e-containerd-serial-ec2

[Karthik-K-N]

/test pull-kubernetes-node-e2e-containerd-serial-ec2

[k8s-ci-robot]

@Karthik-K-N: The following test 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-kubernetes-node-e2e-containerd-serial-ec2	ebc4768	link	false	/test pull-kubernetes-node-e2e-containerd-serial-ec2

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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