Update the `controller-runtime` dependency to v0.22.1

[rohanKanojia]

Description

Update the sigs.k8s.io/controller-runtime dependency to v0.22.1 to ensure compatibility with newer Kubernetes versions, benefit from upstream improvements, and maintain long-term stability across our controller logic.

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Acceptance Criteria

• go.mod and go.sum reflect controller-runtime v0.22.1
• go mod tidy has been run and verified
• All unit and integration tests pass without regressions
• Existing controllers and reconcilers function as expected
• Webhook configurations (if used) are validated post-upgrade
• Documentation is updated if any APIs or behaviors have changed
• Release notes for v0.22.1 have been reviewed for breaking changes