Update tests.yml

Just comment out macos builds so the last run before archiving is green

Author: benhoyt

.github/workflows/tests.yml

@@ -12,7 +12,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        os: [ubuntu-latest, macos-latest, windows-latest]
+        os: [ubuntu-latest, windows-latest]
         python-version: ['pypy-2.7', '3.9', '3.10', '3.11']
         exclude:
           - os: macos-latest