osx: restore x86 builds

Author: jschueller

.github/workflows/build.yml

@@ -52,7 +52,7 @@ jobs:
     strategy:
       fail-fast: False
       matrix:
-        os: [ ubuntu-latest, macos-latest, macos-14 ]
+        os: [ ubuntu-latest, macos-latest, macos-13 ]
     steps:
       - name: Checkout repository
         uses: actions/checkout@v4
@@ -90,7 +90,7 @@ jobs:
     runs-on: ${{ matrix.os }}
     strategy:
       matrix:
-        os: [ windows-latest, ubuntu-latest, macos-latest, macos-14 ]
+        os: [ windows-latest, ubuntu-latest, macos-latest, macos-13 ]
         python-version: [ '3.9', '3.10', '3.11', '3.12', '3.13' ]
 
     steps: