Set mac target to 15

Author: larsevj

.github/workflows/bundle_with_dakota_macos.yml

@@ -37,7 +37,7 @@ jobs:
     env:
       INSTALL_DIR: ${{ inputs.INSTALL_DIR }}
       SYSTEM_VERSION_COMPAT: 0
-      MACOSX_DEPLOYMENT_TARGET: '11.0'
+      MACOSX_DEPLOYMENT_TARGET: '15.0'
     steps:
 
     - name: Echo env and inputs
@@ -240,7 +240,7 @@ jobs:
         arch_ver=$(uname -m)
 
         # hint regarding architecture to avoid universal wheel generated
-        export _PYTHON_HOST_PLATFORM="macosx-11.0-$arch_ver"
+        export _PYTHON_HOST_PLATFORM="macosx-${MACOSX_DEPLOYMENT_TARGET}-$arch_ver"
         export ARCHFLAGS="-arch $arch_ver"
 
         pip install delocate