Replace macos-13 with macos-15-intel

The macOS 13 Ventura based runner images will begin deprecation on September 22nd and will be fully unsupported by December 4th for GitHub and ADO

actions/runner-images#13046

Signed-off-by: Edgar Ramírez Mondragón <edgarrm358@gmail.com>

Author: edgarrmondragon

.github/workflows/test.yml

@@ -100,11 +100,11 @@ jobs:
           - macos-latest
         include:
           - python-version: 3.8
-            os: macos-13
+            os: macos-15-intel
           - python-version: 3.9
-            os: macos-13
+            os: macos-15-intel
           - python-version: "3.10"
-            os: macos-13
+            os: macos-15-intel
 
     steps:
       - name: Checkout repos