chore(ci): Use macos-latest for arm64, macos-15-intel for x64

Author: effigies

.github/workflows/test.yml

@@ -112,7 +112,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        os: ['ubuntu-latest', 'windows-latest', 'macos-14', 'macos-latest']
+        os: ['ubuntu-latest', 'windows-latest', 'macos-latest', 'macos-15-intel']
         python-version:
           - "3.10"
           - "3.11"
@@ -150,14 +150,6 @@ jobs:
             python-version: "3.13"
           - os: windows-latest
             python-version: "3.13t"
-          - os: macos-14
-            python-version: "3.11"
-          - os: macos-14
-            python-version: "3.12"
-          - os: macos-14
-            python-version: "3.13"
-          - os: macos-14
-            python-version: "3.13t"
           - os: macos-latest
             python-version: "3.11"
           - os: macos-latest
@@ -166,20 +158,30 @@ jobs:
             python-version: "3.13"
           - os: macos-latest
             python-version: "3.13t"
+          - os: macos-15-intel
+            python-version: "3.11"
+          - os: macos-15-intel
+            python-version: "3.12"
+          - os: macos-15-intel
+            python-version: "3.13"
+          - os: macos-15-intel
+            python-version: "3.13t"
 
           ## Unavailable architectures
-          # x86 is available for Windows
+          # x86 is available for Windows and Mac
           - os: ubuntu-latest
             architecture: x86
-          - os: macos-14
-            architecture: x86
           - os: macos-latest
             architecture: x86
+          - os: macos-15-intel
+            architecture: x86
           # arm64 is available for macos-14+
           - os: ubuntu-latest
             architecture: arm64
           - os: windows-latest
             architecture: arm64
+          - os: macos-15-intel
+            architecture: arm64
           # x64 is not available for macos-15
           - os: macos-latest
             architecture: x64
@@ -215,14 +217,16 @@ jobs:
       - name: Set up Python ${{ matrix.python-version }}
         if: endsWith(matrix.python-version, 't')
         run: |
-          echo "UV_PYTHON=${IMPL}-${VERSION}-${OS%-*}-${ARCH}-${LIBC}" >> $GITHUB_ENV
+          echo "UV_PYTHON=${IMPL}-${VERSION}-${OS}-${ARCH}-${LIBC}" >> $GITHUB_ENV
           source $GITHUB_ENV
           uv python install $UV_PYTHON
         env:
           IMPL: cpython
           VERSION: ${{ matrix.python-version }}
           # uv expects linux|macos|windows, we can drop the -* but need to rename ubuntu
-          OS: ${{ matrix.os == 'ubuntu-latest' && 'linux' || matrix.os }}
+          OS: ${{ matrix.os == 'ubuntu-latest' && 'linux' ||
+                  matrix.os.startsWith('macos') && 'macos' ||
+                  matrix.os }}
           # uv expects x86, x86_64, aarch64 (among others)
           ARCH: ${{ matrix.architecture == 'x64' && 'x86_64' ||
                     matrix.architecture == 'arm64' && 'aarch64' ||