update gh-runner@macOS-15

Author: scareything

.github/workflows/CI.yml

@@ -13,7 +13,7 @@ permissions:
 
 jobs:
   build-tsdk:
-    runs-on: macos-latest
+    runs-on: macos-15
 
     strategy:
       matrix:
@@ -59,7 +59,7 @@ jobs:
         path: ${{ matrix.spec.name }}.tgz
 
   build-cziti:
-    runs-on: macos-latest
+    runs-on: macos-15
     needs: [ build-tsdk ]
 
     steps: