Sync upstream v1.30.1

[sssash18]

What this PR does / why we need it:

Which issue(s) this PR fixes: Fixes #304

Special notes for your reviewer:

Release note:

- Synced changes till v1.30.1 of upstream autoscaler.

[CLAassistant]

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2 out of 14 committers have signed the CLA.

:white_check_mark: voelzmo
:white_check_mark: sssash18
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:x: towca
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