[User Story] - CI Pipeline for automating app deployment

[dantelmomsft]

Description
Build automatic CI pipeline to be used for integration testing and PR validation.

Current Behavior
no CI pipeline

Acceptance Criteria
List clear, testable outcomes. Example:

• Github workflows pipeline to be triggered manually on main. Automatically on each PR request.
• Add unit test for each agent.
• Build and deploy the solution on a dedicated pre-provisioned Azure env (no infra automation)
• azd bicep validation when infra code is changed.

Design Considerations
Consider to reuse the same approach and script used here: https://github.com/Azure-Samples/agent-openai-java-banking-assistant/tree/main/.github/workflows. Those need to be changed to build, run test, deploy python apps.
Furthermore we should include some unit test for account, transaction, payment, supervisor agents.

Main Affected Modules and/or Classes
new workflows to create