ci: adopt latest macOS runners

I don't think `macos-13` or `macos-14` exist anymore. Upgrade to latest
runners so CI works fully again.

Author: indygreg

.github/workflows/external-zstd.yml

@@ -37,7 +37,7 @@ jobs:
           python -m pip install --config-settings=--global-option=--system-zstd .
 
   macOS:
-    runs-on: 'macos-13'
+    runs-on: 'macos-26'
     env:
       # Make all compile warnings fatal.
       ZSTD_WARNINGS_AS_ERRORS: '1'

.github/workflows/pypy.yml

@@ -16,7 +16,7 @@ jobs:
       matrix:
         os:
           - 'ubuntu-22.04'
-          - 'macos-13'
+          - 'macos-26'
           - 'windows-2022'
         py:
           - 'pypy-3.10'
@@ -27,7 +27,7 @@ jobs:
         exclude:
           - os: 'ubuntu-22.04'
             arch: 'x86'
-          - os: 'macos-13'
+          - os: 'macos-26'
             arch: 'x86'
           - os: 'windows-2022'
             py: 'pypy-3.11'
@@ -59,7 +59,7 @@ jobs:
       matrix:
         os:
           - 'ubuntu-22.04'
-          - 'macos-13'
+          - 'macos-26'
           - 'windows-2022'
         py:
           - 'pypy-3.10'
@@ -70,7 +70,7 @@ jobs:
         exclude:
           - os: 'ubuntu-22.04'
             arch: 'x86'
-          - os: 'macos-13'
+          - os: 'macos-26'
             arch: 'x86'
           - os: 'windows-2022'
             py: 'pypy-3.11'

.github/workflows/test.yml

@@ -17,8 +17,8 @@ jobs:
         os:
           - 'ubuntu-22.04'
           - 'ubuntu-22.04-arm'
-          - 'macos-13'
-          - 'macos-14'
+          - 'macos-26'
+          - 'macos-26-intel'
           - 'windows-2022'
           - 'windows-11-arm'
         py:
@@ -42,13 +42,13 @@ jobs:
             arch: 'x86'
           - os: 'ubuntu-22.04-arm'
             arch: 'x64'
-          - os: 'macos-13'
+          - os: 'macos-26-intel'
             arch: 'arm64'
-          - os: 'macos-13'
+          - os: 'macos-26-intel'
             arch: 'x86'
-          - os: 'macos-14'
+          - os: 'macos-26'
             arch: 'x86'
-          - os: 'macos-14'
+          - os: 'macos-26'
             arch: 'x64'
           - os: 'windows-2022'
             arch: 'arm64'

.github/workflows/wheel.yml

@@ -129,7 +129,7 @@ jobs:
         arch:
           - 'arm64'
           - 'x86_64'
-    runs-on: ${{ matrix.arch == 'x86_64' && 'macos-13' || 'macos-14' }}
+    runs-on: ${{ matrix.arch == 'x86_64' && 'macos-26-intel' || 'macos-26' }}
     env:
       CIBW_ARCHES: ${{ matrix.arch }}
       CIBW_BUILD: ${{ matrix.py }}-macosx_${{ matrix.arch }}