Migrate Ginkgo Expectations to operatorpkg

[jonathan-innis]

Description

What problem are you trying to solve?

Right now, we have a bunch of duplicates for "expectations" for Ginkgo testing that are already present in operatorpkg. We should be able to just do a once-off migration over to it and drop all of these exepctations from our codebase.

See: https://github.com/awslabs/operatorpkg/blob/main/test/expectations/expectations.go

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