Bypass authentication for metric endpoints on Serving.

[mrzzy]

What this PR does / why we need it:
Follow up of #862 to extend Authentication Bypass for metrics access to Serving for the /metrics and /actuator endpoints.

Which issue(s) this PR fixes:

Fixes #

Does this PR introduce a user-facing change?:

NONE

[khorshuheng]

/test test-end-to-end-batch

[khorshuheng]

/test test-end-to-end-batch

[mrzzy]

/test test-end-to-end-batch

[feast-ci-bot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: khorshuheng, mrzzy, pyalex

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[mrzzy]

/test test-end-to-end-batch

[pyalex]

/test test-end-to-end-batch-dataflow

[pyalex]

/lgtm

[feast-ci-bot]

@mrzzy: The following test failed, say /retest to rerun them all:

Test name	Commit	Details	Rerun command
test-end-to-end-batch-dataflow	3b44161	link	/test test-end-to-end-batch-dataflow

Full PR test history

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