Stale readme description of Unreal engine version

[mayurnewase]

Bug report

• AirSim Version/#commit:
• UE/Unity version:
• autopilot version:
• OS Version:

What's the issue you encountered?

Readme says main branch supports Unreal Engine 5.2, but in the Enviroments/BlocksV2/BlocksV2.project has "EngineAssociation": "5.4"

Settings

How can the issue be reproduced?

Include full error message in text form

What's better than filing an issue? Filing a pull request :).