ci: workflow to automate the validation of Bicep parameter files

[Harsh-Microsoft]

Purpose

This pull request introduces a new GitHub Actions workflow to automate validation of Bicep parameters in the repository. The workflow runs on a schedule and on pull requests affecting infrastructure files, and provides automated notifications and artifact uploads based on validation results.

New GitHub Actions workflow for Bicep parameter validation:

• Added .github/workflows/validate-bicep-params.yml to automate validation of Bicep parameter files (.bicep and .parameters.json) using the Deployment/validate_bicep_params.py script. The workflow runs on a schedule (weekly) and on pull requests targeting relevant files.

Validation and reporting:

• The workflow captures validation output, summarizes results in the GitHub Actions summary, and uploads validation artifacts (infra_results.json).
• On scheduled runs, the workflow sends email notifications via Logic Apps if validation fails or succeeds, including detailed output and a link to the workflow run.
• The workflow enforces failure of the workflow if parameter validation errors are detected.

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

• ...

Other Information