Try macosx_deployment_target=13

Author: rmjarvis

.github/workflows/wheels.yml

@@ -67,7 +67,7 @@ jobs:
           CIBW_SKIP: cp36* cp37* cp38* pp*
           CIBW_BEFORE_ALL: brew install fftw || true
           CIBW_ENVIRONMENT: >-
-            MACOSX_DEPLOYMENT_TARGET=15.0
+            MACOSX_DEPLOYMENT_TARGET=13.0
 
       - uses: actions/upload-artifact@v4
         with:
@@ -96,7 +96,7 @@ jobs:
             CPPFLAGS="-I/opt/homebrew/opt/llvm/include"
             PATH="/opt/homebrew/opt/llvm/bin:$PATH"
             FFTW_DIR="/opt/homebrew/lib"
-            MACOSX_DEPLOYMENT_TARGET=15.0
+            MACOSX_DEPLOYMENT_TARGET=13.0
 
       - uses: actions/upload-artifact@v4
         with: