Bump to Golang 1.19 semantics

[joshuatcasey]

Is your feature request related to a problem? Please describe.

Keep things up to date. Remove extraneous code and/or simplify existing code.

Describe the solution you'd like

All go.mod files use go 1.19. https://go.dev/doc/modules/gomod-ref#go

Describe alternatives you've considered

We could stay with go 1.17, which is no longer supported. We could bump to go 1.18, which is slightly newer but there's no compelling reason not to make it all the way to go 1.19. Note that this simply affects semantics, since the build and runtime are still 1.19.

Are you considering submitting a PR for this feature?

Yes.

Additional context

TODO:

• Use any instead of interface{}?
• Explore use of generics
• Remove psets in favor of k8s.io/apimachinery/pkg/util/sets
• Use atomic.Bool from Golang stdlib instead of an uber lib (this is technically separate but we should do it anyways!)

[joshuatcasey]

This was closed with #1372