[User Story] - Add support for running adk on Azure

[dantelmomsft]

Description
Provide support to implement agents using Google ADK . We have to upgrade adk version to a released package >= 0.3.0 which contains the bug fix I've provided to langchain4j:
google/adk-java#246

Current Behavior
There is already a branch with implementation available here:
https://github.com/Azure-Samples/agent-openai-java-banking-assistant/tree/google-adk-java.
It was originally based on a nightly build not released.

Acceptance Criteria

• adk implementation remains on a dedicated branch
• adk-java maven dependencies is updated to 0.3.0
• Account, Payment,Transaction agents work with no regression