Temp: only run on MacOS

.github/workflows/test_functional.yml

@@ -38,53 +38,11 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        os: ['ubuntu-latest']
+        os: ['macos-latest']
         python-version: ['3.7']
         test-base: ['tests/f']
-        chunk: ['1/4', '2/4', '3/4', '4/4']
-        platform: ['_local_background* _local_at*']
-        # NOTE: includes must define ALL of the matrix values
-        include:
-          # latest python
-          - name: 'py-3.11'
-            os: 'ubuntu-latest'
-            python-version: '3.11'
-            test-base: 'tests/f'
-            chunk: '1/4'
-            platform: '_local_background*'
-          # tests/k
-          - name: 'flaky'
-            os: 'ubuntu-latest'
-            python-version: '3.7'
-            test-base: 'tests/k'
-            chunk: '1/1'
-            platform: '_local_background* _local_at*'
-          # remote platforms
-          - name: '_remote_background_indep_poll'
-            os: 'ubuntu-latest'
-            python-version: '3.7'
-            test-base: 'tests/f tests/k'
-            chunk: '1/1'
-            platform: '_remote_background_indep_poll _remote_at_indep_poll'
-          - name: '_remote_background_indep_tcp'
-            os: 'ubuntu-latest'
-            test-base: 'tests/f tests/k'
-            python-version: '3.7'
-            chunk: '1/1'
-            platform: '_remote_background_indep_tcp _remote_at_indep_tcp'
-          # macos
-          - name: 'macos 1/5'
-            os: 'macos-latest'
-            python-version: '3.7'
-            test-base: 'tests/f'
-            chunk: '1/5'
-            platform: '_local_background*'
-          - name: 'macos 2/5'
-            os: 'macos-latest'
-            python-version: '3.7'
-            test-base: 'tests/f'
-            chunk: '2/5'
-            platform: '_local_background*'
+        chunk: ['1/5', '2/5', '3/5', '4/5']
+        platform: ['_local_background*']
 
     env:
       # Use non-UTC time zone