Add Kubernetes Pod labels to Core and Serving.

[ashwinath]

What this PR does / why we need it:
Allows pod labels to be included in Kubernetes deployments for easier management and classification of pods.

Which issue(s) this PR fixes:

Fixes #794

Does this PR introduce a user-facing change?:

Added support for Pod labels in Kubernetes.

[feast-ci-bot]

Hi @ashwinath. Thanks for your PR.

I'm waiting for a feast-dev 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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[feast-ci-bot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: ashwinath, woop

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• OWNERS [woop]

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[feast-ci-bot]

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

Test name	Commit	Details	Rerun command
test-end-to-end-batch	ac8c5a0	link	/test test-end-to-end-batch

Full PR test history

Instructions for interacting with me using PR comments are available here. If you have questions or suggestions related to my behavior, please file an issue against the kubernetes/test-infra repository. I understand the commands that are listed here.