feat(env): add auto go maxprocs

[dongjiang1989]

What this PR does / why we need it:

this PR is about adding a new dependency on go.uber.go/automaxprocs.

auto set GOMAXPROC for metrics-server pod/container

Which issue(s) this PR fixes (optional, in fixes #<issue number>(, fixes #<issue_number>, ...) format, will close the issue(s) when PR gets merged):
Fixes #

[k8s-ci-robot]

Hi @dongjiang1989. Thanks for your PR.

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[dgrisonnet]

/triage accepted
/assign

[dongjiang1989]

/triage accepted /assign

Thanks @dgrisonnet . Can you add ok-to-test?

[k8s-ci-robot]

[APPROVALNOTIFIER] This PR is NOT APPROVED

This pull-request has been approved by: dongjiang1989
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[serathius]

/ok-to-test

[serathius]

@dongjiang1989 What tests have you conducted on the PR? Would be nice to see if there is noticeable performance/latency improvement before merging.

[dongjiang1989]

/test pull-metrics-server-verify

[dongjiang1989]

/test pull-metrics-server-test-e2e-ha

[dongjiang1989]

/test pull-metrics-server-test-e2e-helm

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