deps(deps): update k8s-openapi requirement from 0.23 to 0.26

Updates the requirements on [k8s-openapi](https://github.com/Arnavion/k8s-openapi) to permit the latest version.
- [Release notes](https://github.com/Arnavion/k8s-openapi/releases)
- [Changelog](https://github.com/Arnavion/k8s-openapi/blob/master/CHANGELOG.md)
- [Commits](Arnavion/k8s-openapi@v0.23.0...v0.26.0)

---
updated-dependencies:
- dependency-name: k8s-openapi
  dependency-version: 0.26.0
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

Cargo.toml

@@ -128,7 +128,7 @@ url = "2.5"
 validator = { version = "0.20", features = ["derive"] }
 
 # Kubernetes client
-k8s-openapi = { version = "0.23", features = ["v1_31"] }
+k8s-openapi = { version = "0.26", features = ["v1_31"] }
 kube = { version = "0.97", features = ["client", "derive", "runtime"] }
 
 # TLS (for crypto provider initialization)