fix: update required python version in README.md

Author: philipph-askui

README.md

@@ -153,7 +153,7 @@ Ready to build your first agent? Check out our documentation:
 pip install askui[all]
 ```
 
-**Requires Python >=3.10**
+**Requires Python >=3.10, <3.14**
 
 You'll also need to install AskUI Agent OS for device control. See [Setup Guide](docs/01_Setup.md) for detailed instructions.