fix(deps): update rust crate k8s-openapi to 0.21.0

Author: renovate[bot]

Cargo.toml

@@ -9,7 +9,7 @@ clap = { version = "3.0.14", features = ["derive"] }
 colored = "2.0.0"
 dialoguer = "0.9.0"
 dirs = "4.0.0"
-k8s-openapi = { version = "0.14.0", features = ["v1_22"] }
+k8s-openapi = { version = "0.21.0", features = ["v1_22"] }
 kube = { version = "0.69.0" }
 openssl-sys = "0.9.72"
 serde = "1.0"