Upgrade dev dependencies and fix issues after upgrading to pytest-aiohttp v1.0.4

tests/utils/test_asyncio.py

@@ -44,7 +44,7 @@ async def test_exception_wait_run_in_executor():
 
 
 @pytest.mark.skipif(sys.platform.startswith("win"), reason="Not supported on Windows")
-async def test_subprocess_check_output(loop, tmpdir):
+async def test_subprocess_check_output(tmpdir):
 
     path = str(tmpdir / "test")
     result = await subprocess_check_output("echo", "-n", path)