Query params are being encoded too early so cannot be effectively mocked

[ghandic]

Describe the bug
Query params are being encoded too early so cannot be effectively mocked

To Reproduce
See full dialog in chassing/uplink-httpx#6

Expected behavior
See full dialog in chassing/uplink-httpx#6

Additional context
This seems to be an edge case when the characters are need percent url encoding

[ghandic]

I found that if I set encoded=True then it is passing, though this seems a little sketchy :D as httpx seems to auto encode but other http clients might not

import httpx
import respx
from fastapi import FastAPI, Query
from uplink import Consumer
from uplink import Query as Q
from uplink import get, returns
from uplink_httpx import HttpxClient

### Given: Mock Server
BASE_URL = "https://mock.api/"

app = FastAPI()


@app.get("/user")
def get_user(select: str = Query(alias="$select")):
    return {"id": select}


mock_api = respx.mock(base_url=BASE_URL, assert_all_called=False)
mock_api.route().mock(side_effect=respx.ASGIHandler(app))


### When: Client
class BasicClient(Consumer):
    @get("user")
    @returns.json()
    def user(self, select: Q("$select", encoded=True)):
        ...


### Then: Should work with either raw client or uplink client
@mock_api
async def test_raw():
    client = BasicClient(base_url=BASE_URL, client=HttpxClient())
    resp = await client.user(select=123)
    assert resp.status_code == 200
    assert resp.json() == {"id": "123"}


@mock_api
async def test_uplink():
    resp = await httpx.AsyncClient().get(f"{BASE_URL}user?$select=123")
    assert resp.status_code == 200
    assert resp.json() == {"id": "123"}

All passing with the above