don't test macos 13

Author: henderkes

src/globals/test-extensions.php

@@ -23,7 +23,7 @@
 
 // test os (macos-13, macos-14, macos-15, ubuntu-latest, windows-latest are available)
 $test_os = [
-    'macos-13', // bin/spc for x86_64
+    // 'macos-13', // bin/spc for x86_64
     // 'macos-14',  // bin/spc for arm64
     'macos-15', // bin/spc for arm64
     'ubuntu-latest', // bin/spc-alpine-docker for x86_64