Use macos-12 image

dstansby · dstansby · commit 42733d349a6b · 2024-05-24T10:50:49.000+01:00
diff --git a/.github/workflows/ci-osx.yaml b/.github/workflows/ci-osx.yaml
@@ -8,7 +8,7 @@ concurrency:
 
 jobs:
   build:
-    runs-on: macos-13
+    runs-on: macos-12
     strategy:
       fail-fast: false
       matrix:
