Add ACR name parameter to parameter files

[Vamshi-Microsoft]

Purpose

This pull request adds support for specifying the Azure Container Registry (ACR) name as a parameter in both the main and WAF infrastructure parameter files. This allows for more flexible configuration of the ACR used in deployments.

Infrastructure configuration:

• Added the acrName parameter to infra/main.parameters.json to allow the ACR name to be set via environment variables.
• Added the acrName parameter to infra/main.waf.parameters.json for consistent support in WAF-related deployments.

Does this introduce a breaking change?

• Yes
• No

Golden Path Validation

• I have tested the primary workflows (the "golden path") to ensure they function correctly without errors.

Deployment Validation

• I have validated the deployment process successfully and all services are running as expected with this change.

What to Check

Verify that the following are valid

• I have built and tested the code locally and in a deployed app
• For frontend changes, I have pulled the latest code from main, built the frontend, and committed all static files.
• This is a change for all users of this app. No code or asset is specific to my use case or my organization.

Other Information