ci/cd pipeline updated

- macOS-14
- Xcode updated to 15.2

.github/workflows/macOS-tests.yml

@@ -1,4 +1,4 @@
-name: "macOS 12"
+name: "macOS 14"
 
 on:
   push:
@@ -23,12 +23,12 @@ on:
       - develop-4.0
 
 env:
-  DEVELOPER_DIR: /Applications/Xcode_14.1.app/Contents/Developer
+  DEVELOPER_DIR: /Applications/Xcode_15.2.app/Contents/Developer
 
 jobs:
   spm:
-    name: Swift Package Manager 5.7
-    runs-on: macOS-12
+    name: Swift Package Manager 5.9
+    runs-on: macOS-14
     concurrency:
       group: spm-${{ github.run_id }}
       cancel-in-progress: false