fix: updated the azure-ai-agents version to resolve the package issue

[Dhruvkumar-Microsoft]

Purpose

This pull request adds a new dependency to the backend Python project. The main change is the inclusion of the azure-ai-agents package, which may enable new AI agent capabilities or features in the project.

Dependency update:

• Added azure-ai-agents>=1.2.0b1 to the dependencies list in src/backend/pyproject.toml.

Does this introduce a breaking change?

• Yes
• No

How to Test

• Get the code

git clone [repo-address]
cd [repo-name]
git checkout [branch-name]
npm install

• Test the code

What to Check

Verify that the following are valid

• ...

Other Information

[github-actions]

🎉 This PR is included in version 2.2.0 🎉

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