update macos images to minimum 13 and add ARM64 support

.github/workflows/build-macos.yml

@@ -25,15 +25,22 @@ jobs:
         # Github Actions requires a single row to be added to the build matrix.
         # See https://help.github.com/en/articles/workflow-syntax-for-github-actions.
         name: [
-          macos-12-xcode-14.2,
+          macos-13-xcode-14.2,
+          macos-13-arm64-xcode-14.2,
           macos-14-xcode-15.4,
+          macos-14-arm64-xcode-15.4,
         ]
 
         build_type: [Debug, Release]
         build_unstable: [ON]
         include:
-          - name: macos-12-xcode-14.2
-            os: macos-12
+          - name: macos-13-xcode-14.2
+            os: macos-13
+            compiler: xcode
+            version: "14.2"
+
+            - name: macos-13-arm64-xcode-14.2
+            os: macos-13-xlarge
             compiler: xcode
             version: "14.2"
 
@@ -42,6 +49,11 @@ jobs:
             compiler: xcode
             version: "15.4"
 
+            - name: macos-14-arm64-xcode-15.4
+            os: macos-14-xlarge
+            compiler: xcode
+            version: "15.4"
+
     steps:
       - name: Checkout
         uses: actions/checkout@v4

.github/workflows/build-python.yml

@@ -30,7 +30,7 @@ jobs:
           [
             ubuntu-20.04-gcc-9,
             ubuntu-20.04-clang-9,
-            macos-12-xcode-14.2,
+            macos-14-arm64-xcode-15.4,
             macos-14-xcode-15.4,
             windows-2022-msbuild,
           ]
@@ -48,10 +48,10 @@ jobs:
             compiler: clang
             version: "9"
 
-          - name: macos-12-xcode-14.2
-            os: macos-12
+          - name: macos-14-arm64-xcode-15.4
+            os: macos-14-xlarge
             compiler: xcode
-            version: "14.2"
+            version: "15.4"
 
           - name: macos-14-xcode-15.4
             os: macos-14