[Good First Issue] Add playbook for Kubernetes Pod Disruption Budget violations

[AtharvaBondreScoutflo]

Description

Create a new playbook for handling Pod Disruption Budget (PDB) violations in Kubernetes.

Requirements

• Follow the 4-section structure (Meaning, Impact, Playbook, Diagnosis)
• Place in K8s Playbooks/04-Workloads/
• Cover common scenarios: eviction failures, node drain issues

Resources

• Kubernetes PDB Documentation
• See existing playbooks in the folder for format reference

Getting Started

1. Read CONTRIBUTING.md
2. Check .github/GETTING_STARTED.md
3. Look at exemplary playbooks listed in CLAUDE.md