Update the kubernetes to v1.30 and controller runtime to v0.18

[prafull01]

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[Copilot]

Pull Request Overview

This PR updates the project to use Kubernetes v1.30 and controller-runtime v0.18, updating API calls, client creation, and related build and dependency configurations.

• Updates clientset creation functions to use NewForConfigAndClient for shared HTTP client usage.
• Modifies webhook and defaulting/validation interfaces to align with controller-runtime v0.18 changes.
• Updates project dependencies, code generation scripts, and Bazel/workspace configurations.

Reviewed Changes

Copilot reviewed 42 out of 42 changed files in this pull request and generated 1 comment.

Show a summary per file

File	Description
pkg/client/clientset/versioned/clientset.go	Updated clientset creation using NewForConfigAndClient to share HTTP client transport.
pkg/actor/initialize.go	Added context parameter to ExecInPod call as per updated API.
pkg/actor/director_test.go	Updated test expectations for new API changes in StatefulSet spec and resource definitions.
hack/verify-crds.sh	Revised CRD generation arguments per updated controller-runtime requirements.
hack/update-codegen.sh	Adjusted flags and output file naming conventions for code generators.
cmd/cockroach-operator/main.go	Refactored manager options to align with new multi-namespace and webhook server configuration.
apis/v1alpha1/webhook*.go	Updated webhook interfaces to the CustomDefaulter/CustomValidator patterns with context.
Other files (BUILD.bazel, WORKSPACE, Makefile, etc.)	Updated dependency versions, build rules, and miscellaneous configurations.

Comments suppressed due to low confidence (2)

cmd/cockroach-operator/main.go:118

• Verify that replacing MultiNamespacedCacheBuilder with cache.New properly supports multi-namespace caching and provides equivalent behavior in multi-tenant environments.

mgrOpts.NewCache = cache.New

hack/update-codegen.sh:115

• Ensure downstream build scripts and code references are updated to accommodate the change in the generated deepcopy file name for consistency across the codebase.

--output-file zz_generated.deepcopy.go