This PR improves the existing GitHub Actions workflow for deploying Kubernetes preview environments and introduces the following enhancements:

Changes Introduced:

1. Improved Workflow Triggers:

   • Added triggers for unlabeled and synchronize events to manage deployment more dynamically.

2. Enhanced Namespace Management:

   • Combined namespace creation into the deployment configuration for cleaner resource definitions.

3. Dynamic Comments on PR:

   • Automatically deletes old bot comments and posts updates when the preview is deployed or cleaned up.
   • Includes a direct link to the preview environment and timestamps for better traceability.

4. Image Pull Policy:

   • Added imagePullPolicy: Always to ensure the latest image is deployed.

5. Cleanup Logic:

   • Handles unlabeled and closed PRs to remove preview environments and notify users.

Benefits:

• Simplifies namespace creation and management.
• Keeps PR discussions clean with dynamic comment handling.
• Improves user experience by providing real-time updates and preview links.