MNT: build macOS amr64 wheels without cross-compiling

.github/workflows/wheels.yaml

@@ -22,7 +22,8 @@ jobs:
         os: [
           ubuntu-20.04,
           windows-2019,
-          macos-11,
+          macos-12, # x86_64
+          macos-14, # amr64
         ]
       fail-fast: false
 
@@ -38,7 +39,7 @@ jobs:
           CIBW_BUILD: "cp39-* cp310-* cp311-* cp312-*"
           CIBW_SKIP: "*-musllinux_*"  #  numpy doesn't have wheels for musllinux so we can't build some quickly and without bloating
           CIBW_ARCHS_LINUX: "x86_64"
-          CIBW_ARCHS_MACOS: x86_64 arm64
+          CIBW_ARCHS_MACOS: auto
           MACOSX_DEPLOYMENT_TARGET: "10.9" # as of CIBW 2.9, this is the default value, pin it so it can't be bumped silently
           CIBW_ARCHS_WINDOWS: auto64
           CIBW_ENVIRONMENT: "LDFLAGS='-static-libstdc++'"