sig-cloud-provider: move andrewsykim and nckturner to emeritus status add elmiko as TL

[andrewsykim]

move andrewsykim and nckturner to emeritus status add elmiko as TL

[k8s-ci-robot]

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[elmiko]

i am happy to serve as an interim technical lead to help facilitate the change, but i would feel more comfortable about adding another member from the community as well.

also, do we need to announce this change on the mailing list before we merge the PR?

[elmiko]

cc @bridgetkromhout @cheftako

[cblecker]

/hold
/committee steering

The process for leadership changes is here (and does include some email steps): https://github.com/kubernetes/community/blob/master/contributors/chairs-and-techleads/leadership-changes.md

There's also a handy issue template with a checklist: https://github.com/kubernetes/community/issues/new/choose

[elmiko]

thanks @cblecker , i seem to remember us missing some steps on this the last time, so i wanted to make sure we observe the proper process.