ci: use macos 15 as arm runner

Author: Totto16

.github/workflows/build.yml

@@ -77,7 +77,7 @@ jobs:
 
           - name: MacOS Release (Arm64)
             os: macos
-            os-version: 14
+            os-version: 15
             arm: true
             buildtype: release
             library_type: shared