Feat: Mutating Webhooks support under kubectl-apply module

[SwarnaBharathiMantena]

Motivation

Mutating Webhook allows us to enforce policies, inject standard configurations (like sidecar containers or specific labels), or inject mandatory health checks automatically without developers needing to manually update every single application manifest.

Usecase

Health Checks
Mutating Webhook can be used to inspect any new Pod being created. If it meets certain criteria (e.g., specific labels or node selector), the webhook automatically injects the required health check probes directly into the Pod's container specification.

Submission Checklist

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