refactor: Upgrade agent framework to latest version

[NirajC3-Microsoft]

Purpose

This pull request removes two Python scripts (create_assistants.py and list_assistants.py) related to Azure AI Foundry assistants, deletes the orders_plugin.py and reference_plugin.py plugins, and updates several dependencies and logging configurations. The changes primarily focus on cleaning up unused or deprecated code, updating dependencies for compatibility, and minor improvements to logging.

Major removals:

• Removed the create_assistants.py and list_assistants.py scripts, which were used for programmatically creating and listing Azure AI Foundry assistants. [1] [2]
• Deleted the orders_plugin.py and reference_plugin.py files, which contained plugins for order management and reference document lookup, respectively. [1] [2]

Dependency and configuration updates:

• Updated the azure-ai-projects dependency to require version >=2.3.0 in requirements.txt for compatibility with recent code changes.
• Changed the import for AzureAIProjectAgentProvider to use the new package path agent_framework.azure instead of agent_framework_azure_ai in foundry_agent_utils.py.
• Updated .flake8 configuration to ignore warning E226 in addition to previous ignores.

Logging and minor code improvements:

• Adjusted logging configuration in main.py to set the log level for azure.ai.projects instead of the previously used logger.
• Minor code formatting and consistency improvements, such as fixing argument formatting in chat.py.
• Removed a placeholder comment from the plugins/__init__.py file.

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

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