Scheduler Preemption for In-Place Pod Resize

[natasha41575]

Enhancement Description

• One-line enhancement description (can be used as a release note): The scheduler will watch for in-place pod resize requests that are marked as Deferred and preempt lower-priority pods until there is enough room on the node for the resize to succeed.
• Kubernetes Enhancement Proposal: Coming soon
• Discussion Link: https://docs.google.com/document/d/1xnpexJ0ojI0GPsrI9V75EzdC_4szAcuBt6MUb5beA7M/edit?usp=sharing
• PRs by stage and milestone:
  • Alpha - v1.37
    • KEP (k/enhancements) update PR(s):
    • Code (k/k) update PR(s):
    • Docs (k/website) update PR(s):

Please keep this description up to date. This will help the Enhancement Team to track the evolution of the enhancement efficiently.

[natasha41575]

/assign
/sig scheduling

cc'ing the following sigs as collaborators / stakeholders:
/sig node
/sig autoscaling

cc @adrianmoisey @omerap12 @tallclair @dom4ha @sanposhiho @macsko

[ffromani]

/cc
(so I can track updates, not planning to review)