Resolve "Fix Tetrate Image integration for gateway"

General MR

Summary

Fixes the Tetrate Image integration for gateway deployments.

• Added templating for enabling Tetrate Image Distro (TID) images.

Relevant logs/screenshots

Helm release and Gateway Pod/Image validation on a k3d test cluster:

Linked Issue

issue

Upgrade Notices

N/A

Closes #11 (closed)