Skip tests on macOS due to Pytest multiprocessing spawn issue.

Author: lohedges

recipes/somd2/template.yaml

@@ -48,7 +48,7 @@ test:
     - tests
   commands:
     - pytest -vvv --color=yes --black src/somd2 # [linux and x86_64 and py==311]
-    - pytest -vvv --color=yes --import-mode=importlib tests
+    - pytest -vvv --color=yes --import-mode=importlib tests # [linux]
 
 about:
   home: https://github.com/openbiosim/somd2