Update linux_and_macos.yml

Use macOS-latest flag instead of macOS-15

Author: hirokemono

.github/workflows/linux_and_macos.yml

@@ -42,7 +42,7 @@ jobs:
 
   Run-on-Mac:
     name: test-compile on Mac
-    runs-on: [macos-15]
+    runs-on: [macos-latest]
     steps:
     - uses: actions/checkout@v2
     - name: build