fastapi-security should support pydantic v2

fastapi has upgraded to pydantic v2, but trying to install fastapi-security with pydantic v2.1.1 results in the following error: 
```
fastapi-security (0.5.0) depends on pydantic (>=1,<2), fastapi-security (>=0.5.0,<0.6.0) requires pydantic (>=1,<2).
```