Warning: "openapi_prefix" has been deprecated in favor of "root_path"

[p-rinnert]

First of all thank you for your work on the module! I really like what you are doing and its working great.

Describe the bug During startup of the API a warning message is shown (likely due to a change in FastAPI): "openapi_prefix" has been deprecated in favor of "root_path", which follows more closely the ASGI standard, is simpler, and more automatic. Check the docs at https://fastapi.tiangolo.com/advanced/sub-applications-proxy/ Might be a simple change here ?

To Reproduce Minimal example:

#example.py
import uvicorn
from fastapi import Depends, FastAPI
from fastapi_versioning import version, VersionedFastAPI

app = FastAPI()

@app.get(path='/example')
@version(1, 0)
def example():
    return 'test'

app = VersionedFastAPI(app) #here the warning is shown

if __name__ == "__main__":
    uvicorn.run("example:app",host="127.0.0.1",port=8000,reload=True,debug=True)

Warning message:

Not related to the bug I was happy to find that module is even doing more than you write in the readme: If a route is only specified in version v1_0 and not overwritten by a new version it is also available in newer endpoints (e.g. v2_0). For me this seems worth mentioning in the readme 👍

[welcomemat-repo]

Great package and makes the versioning very simple.

This warning appears only if we use this package. Hoping it would be fixed soon.

Thanks for your work.

[synchronizing]

22 Fixes the issue.