Update python version in pyproject.toml

update from 3.9 to 3.10 as stated in README


```
 The `requires-python` value (>=3.9) includes Python versions that are not supported by your dependencies
      (e.g., accelerate==1.12.0 only supports >=3.10.0). Consider using a more restrictive `requires-python` value
      (like >=3.10.0)
```