Replace obsolete runners with latest ones

Author: dahlia

.github/workflows/test-actions.yaml

@@ -10,10 +10,11 @@ jobs:
     strategy:
       matrix:
         os:
-        - ubuntu-18.04
         - ubuntu-20.04
-        - macos-10.15
-        - macos-11
+        - ubuntu-22.04
+        - macos-11  # Intel
+        - macos-12  # Intel
+        - macos-13-xlarge  # Apple silicon
         - windows-2019
         - windows-2022
       fail-fast: false