AsyncSession cannot be enforced exclusively with HTTP/3 connection.

[nakoo]

Expected Result

----------non async-----------
<Response HTTP/3 [200]>
<Response HTTP/3 [200]>
------------async-------------
<Response HTTP/3 [200]> # <-- this part
<Response HTTP/3 [200]> # <-- this part

Actual Result

----------non async-----------
<Response HTTP/3 [200]>
<Response HTTP/3 [200]>
------------async-------------
<Response HTTP/1.1 [200]> # <-- this part
<Response HTTP/1.1 [200]> # <-- this part

Reproduction Steps

import niquests
import asyncio

def request(url: str) -> niquests.Response | None:
    with niquests.Session(disable_http1=True,disable_http2=True,disable_http3=False) as session:
        response = session.get(url)
        print(response)

async def async_request(url: str) -> niquests.Response | None:
    async with niquests.AsyncSession(disable_http1=True,disable_http2=True,disable_http3=False) as session:
        response = await session.get(url)
        print(response)

async def run():
    print(f"{'non async':-^30}")
    request("https://http3check.net")
    request("https://http3check.net/about")

    print(f"{'async':-^30}")
    
    tasks = [
        async_request("https://http3check.net"),
        async_request("https://http3check.net/about"),
    ]
    
    await asyncio.gather(*tasks)

asyncio.run(run())

System Information

$ python -m niquests.help

{
  "charset_normalizer": {
    "version": "3.4.0"
  },
  "http1": {
    "h11": "0.14.0"
  },
  "http2": {
    "jh2": "5.0.3"
  },
  "http3": {
    "enabled": true,
    "qh3": "1.2.0"
  },
  "idna": {
    "version": "3.10"
  },
  "implementation": {
    "name": "CPython",
    "version": "3.12.5"
  },
  "niquests": {
    "version": "3.9.0"
  },
  "ocsp": {
    "enabled": true
  },
  "platform": {
    "release": "6.6.53-hardened1",
    "system": "Linux"
  },
  "system_ssl": {
    "version": "300000e0"
  },
  "urllib3.future": {
    "cohabitation_version": null,
    "version": "2.10.902"
  },
  "wassima": {
    "certifi_fallback": false,
    "enabled": true,
    "version": "1.1.3"
  }
}

[Ousret]

We fixed that issue in v3.9.1

The reproducer gave now:

----------non async-----------
<Response HTTP/3 [200]>
<Response HTTP/3 [200]>
------------async-------------
<Response HTTP/3 [200]>
<Response HTTP/3 [200]>

regards,