Handles incorrect mirroring of endpoint annotations to created endpoint
slices, specifically the last-applied-config. Also updates tests
and adds test cases for the same
Add support to the endpoint slice mirroring controller to mirror
annotations, in addition to labels, but don´t mirror endpoint
triggertime annotation.
Also, fix a bug in the endpointslice mirroring controller, that
wasn't updating the mirrored slice with the new labels, in case
that only the endpoint labels were modified.