build: Bump ty to v0.0.16 and fix type issues (#1730)

Author: Mantisus

tests/unit/conftest.py

@@ -208,9 +208,10 @@ def redirect_server_url(redirect_http_server: TestServer) -> URL:
 )
 async def http_client(request: pytest.FixtureRequest) -> AsyncGenerator[HttpClient, None]:
     class_client: type[HttpClient]
+    kwargs: dict[str, Any]
     if request.param == 'curl':
         class_client = CurlImpersonateHttpClient
-        kwargs: dict[str, Any] = {'http_version': CurlHttpVersion.V1_1}
+        kwargs = {'http_version': CurlHttpVersion.V1_1}
     elif request.param == 'impit':
         class_client = ImpitHttpClient
         kwargs = {'http3': False}