Exception request for KEP-4988: Snapshottable API server cache

[Marek Siarkowicz]

• Enhancement name: Snapshottable API server cache
• Enhancement status (alpha/beta/stable): Alpha
• SIG: api-machinery
• k/enhancements repo issue #: https://github.com/kubernetes/enhancements/issues/4988 
• PR #’s: N/A for enhancement freeze
• Additional time needed (in days): 0, KEP in implementable state is merged and approved by leads. We just forgot the "lead-opted-in" label.
• Reason this enhancement is critical for this milestone: Reliability improvement by reducing memory needed to serve large LIST responses and improves APF request cost estimates 
• Risks from adding code late: N/A for enhancement freeze.
• Risks from cutting enhancement: N/A for enhancement freeze
  
  KEP in implementable state was approved by SIG lead and merged yesterday, issue was just not marked with the "lead-opted-in" label.

[David Eads]

I agree with this exception.  One of our tech leads was out sick and I forgot to set the label.  The design and PRR were agreed and merged before the deadline.