fix: Update azure-ai-projects version to 2.4.0 in requirements files

[Harsh-Microsoft]

Purpose

This pull request updates the azure-ai-projects dependency from version 2.1.0 to 2.4.0 in both the backend and infrastructure requirements files. This ensures that the project uses the latest features and bug fixes from the azure-ai-projects package.

Dependency updates:

• Upgraded azure-ai-projects from version 2.1.0 to 2.4.0 in chat-app/backend/requirements.txt
• Upgraded azure-ai-projects from version 2.1.0 to 2.4.0 in infra/scripts/post-provision/agent_scripts/requirements.txt

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

[Copilot]

Pull request overview

This pull request updates the pinned azure-ai-projects dependency to 2.4.0 in both the backend and post-provision agent scripts, aligning the solution’s Python components on the same newer Azure SDK version.

Changes:

• Bumped azure-ai-projects from 2.1.0 to 2.4.0 in chat-app/backend/requirements.txt.
• Bumped azure-ai-projects from 2.1.0 to 2.4.0 in infra/scripts/post-provision/agent_scripts/requirements.txt.

Reviewed changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated no comments.

File	Description
infra/scripts/post-provision/agent_scripts/requirements.txt	Updates the post-provision agent script dependency pin for azure-ai-projects to 2.4.0.
chat-app/backend/requirements.txt	Updates the backend service dependency pin for azure-ai-projects to 2.4.0.

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