Fix

.github/workflows/tests_cron.yml

@@ -15,7 +15,7 @@ jobs:
       fail-fast: false
       matrix:
         # https://docs.github.com/en/actions/using-jobs/using-a-matrix-for-your-jobs
-        os: [ubuntu-20.04, windows-latest, macos-latest] # macos-latest is arm64-based
+        os: [macos-latest] # macos-latest is arm64-based
         python-version: ['3.6', '3.7', '3.8', '3.9', '3.10', '3.11', '3.12']
         tensorflow: [1, 2]
         include:
@@ -41,8 +41,16 @@ jobs:
           # cases for using x86_64-based runner (macos-13)
           - os: macos-13
             python-version: '3.6'  # no arm64 wheels
+            tensorflow: 1
+          - os: macos-13
+            python-version: '3.6'  # no arm64 wheels
+            tensorflow: 2
           - os: macos-13
             python-version: '3.7'  # no arm64 wheels
+            tensorflow: 1
+          - os: macos-13
+            python-version: '3.7'  # no arm64 wheels
+            tensorflow: 2
           - os: macos-13
             python-version: '>=3.12 <3.13'  # intentionally be different than '3.12' to cause an additional combination
             tensorflow: 2