Update kube, kube-runtime, and k8s-openapi. Release version 0.2.0 due to compat change

[rjobanp]

Upgrade to kube packages corresponding with PR in MZ repo MaterializeInc/materialize#21034 and soon to cloud repo.

This requires a compatibility break because of one upstream in kube-rs so I've bumped this package to version 0.2.0.

Supersedes #7 #8 #6

[rjobanp]

Also it looks like the deny check introduced here b27145a is failing with:

Run actions-rs/cargo@v1
/home/runner/.cargo/bin/cargo deny check
error: no such command: `deny`
Error: no such command: `deny`
	Did you mean `bench`?

edit: fixed by using the correct github action for cargo-deny

[doy-materialize]

i think this looks fine - in particular, adding the packages to deny.toml here is basically required because the kube crates themselves also have these same things in their deny.toml, so i don't think there's currently a way to avoid it if we're using those crates.