Allowing resource management of metrics-server container

[holmesb]

Per issue #6648
Will allow fine-tuning of resource allocation and solving throttling issues. Setting defaults as per the current request & limit allocation: cpu: 43m, memory 55Mi for both limits & requests.

What type of PR is this?

/kind feature

Which issue(s) this PR fixes:
#6648

Does this PR introduce a user-facing change?:
No

Allow resource management of metrics-server container

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[k8s-ci-robot]

Hi @holmesb. Thanks for your PR.

I'm waiting for a kubernetes-sigs member to verify that this patch is reasonable to test. If it is, they should reply with /ok-to-test on its own line. Until that is done, I will not automatically test new commits in this PR, but the usual testing commands by org members will still work. Regular contributors should join the org to skip this step.

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[k8s-ci-robot]

[APPROVALNOTIFIER] This PR is NOT APPROVED

This pull-request has been approved by: holmesb
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[floryut]

/ok-to-test
@holmesb looks like your commit is using (or missing) your github handle/mail

[holmesb]

@floryut is this any better?