Bump Kube to 0.66

[kflansburg]

Looks like kube 0.64 depended on tower-http 0.1 which was completely yanked. Bump to latest 0.66.

[kflansburg]

kube introduced the backoff dependency which depends on a package that uses the BSD-3-Clause license. In accordance with this documentation from the CNCF, I've added this license to the cargo deny allow-list.

 error[L001]: failed to satisfy license requirements
  ┌─ instant 0.1.12 (registry+https://github.com/rust-lang/crates.io-index):4:12
  │
4 │ license = "BSD-3-Clause"
  │            ^^^^^^^^^^^^
  │            │
  │            license expression retrieved via Cargo.toml `license`
  │            rejected: not explicitly allowed
  │
  = instant v0.1.12
    └── backoff v0.4.0
        └── kube-runtime v0.66.0
            ├── krator v0.6.0
            └── (dev) krator-derive v0.5.0
                └── krator v0.6.0 (*)