CA: add elmiko as maintainer

[jackfrancis]

What type of PR is this?

/kind cleanup

What this PR does / why we need it:

This PR officially gives @elmiko the ability to review and approve Cluster Autoscaler changes, which recognizes his existing contributions and will help project velocity.

He has landed over 40 PRs over the last 5+ years and is a consistent fixture in the SIG:

• https://github.com/kubernetes/autoscaler/pulls?page=1&q=is%3Apr+author%3Aelmiko+is%3Aclosed

Which issue(s) this PR fixes:

Fixes #

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.:

[k8s-ci-robot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: jackfrancis

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• cluster-autoscaler/OWNERS [jackfrancis]

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[jackfrancis]

/assign @towca @x13n @BigDarkClown @aleksandra-malinowska

[elmiko]

it's an honor just to be nominated =)

[towca]

A big +1 for the nomination from me, @elmiko has been a very active member of the community for a long time and has demonstrated deep Cluster Autoscaler knowledge.

There are formal k8s requirements for the Reviewer/Approver roles: https://github.com/kubernetes/community/blob/master/community-membership.md#approver. Most of them seem to be satisfied here, but these stand out:

• "Primary reviewer for at least 10 substantial PRs to the codebase" I'm not sure how to validate that, any chance you could come up with a list Michael?
• "Reviewer of the codebase for at least 3 months" It seems like there is a mandated Reviewer->Approver progression, so we need to start with Reviewer here.

[jackfrancis]

A big +1 for the nomination from me, @elmiko has been a very active member of the community for a long time and has demonstrated deep Cluster Autoscaler knowledge.

There are formal k8s requirements for the Reviewer/Approver roles: https://github.com/kubernetes/community/blob/master/community-membership.md#approver. Most of them seem to be satisfied here, but these stand out:

• "Primary reviewer for at least 10 substantial PRs to the codebase" I'm not sure how to validate that, any chance you could come up with a list Michael?
• "Reviewer of the codebase for at least 3 months" It seems like there is a mandated Reviewer->Approver progression, so we need to start with Reviewer here.

@towca Done

[jackfrancis]

/hold

to give some time for other maintainers to weigh in

[elmiko]

"Primary reviewer for at least 10 substantial PRs to the codebase" I'm not sure how to validate that, any chance you could come up with a list Michael?

looks like i've participated in 109 closed reviews