Bump MacOS intel CI to macos-15-intel (was macos-13) (#977)

Author: Gedochao

.github/workflows/test.yml

@@ -14,7 +14,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        os: [ubuntu-latest, macOS-13, macOS-latest, windows-latest]
+        os: [ubuntu-latest, macOS-15-intel, macOS-latest, windows-latest]
         jvm: ['temurin:17']
     steps:
     - uses: actions/checkout@v6