Lower buildwheels MACOSX_DEPLOYMENT_TARGET to 11.0 to allow wheel to install on older macOS systems. (#149)

Author: jgr-gh

.github/workflows/buildwheels.yml

@@ -59,7 +59,7 @@ jobs:
           CIBW_ARCHS_MACOS: ${{ runner.arch == 'X64' && 'auto' || 'auto universal2' }}
           CIBW_ARCHS_WINDOWS: "auto ARM64"
           CIBW_BUILD_FRONTEND: "build"
-          MACOSX_DEPLOYMENT_TARGET: "14.0"  # fix build for macos-15-intel
+          MACOSX_DEPLOYMENT_TARGET: "11.0"  # fix build for macos-15-intel
 
       - uses: actions/upload-artifact@v7
         with: