attempt macos-15

Author: Sploder-Saptarshi

.github/workflows/build.yml

@@ -15,7 +15,7 @@ jobs:
 
       strategy:
           matrix:
-              os: [ubuntu-latest, windows-latest, macos-14]
+              os: [ubuntu-latest, windows-latest, macos-15]
 
       steps:
         - name: Checkout repository