python3Packages.tqdm: test with explicit async_mode

pkgs/development/python-modules/tqdm/default.nix

@@ -37,6 +37,11 @@ buildPythonPackage rec {
     # pandas is not supported on i686 or risc-v
     lib.optional (!stdenv.isi686 && !stdenv.hostPlatform.isRiscV) pandas;
 
+  pytestFlagsArray = [
+    # pytest-asyncio 0.17.0 compat; https://github.com/tqdm/tqdm/issues/1289
+    "--asyncio-mode=strict"
+  ];
+
   # Remove performance testing.
   # Too sensitive for on Hydra.
   disabledTests = [