CI: use macos-12

Signed-off-by: falkTX <falktx@falktx.com>

Author: falkTX

.github/workflows/build.yml

@@ -26,7 +26,7 @@ jobs:
     strategy:
       matrix:
         target: [macos-intel, macos-universal]
-    runs-on: macos-11
+    runs-on: macos-12
     steps:
       - uses: actions/checkout@v4
         with: