Merge pull request #23 from fortran-lang/ci/macos-builds

ci(macos): pin to macos-13

Author: gnikit

.github/workflows/test-workflow.yml

@@ -8,7 +8,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        os: [ubuntu-latest, macos-latest, windows-latest]
+        os: [ubuntu-latest, macos-13, windows-latest]
         fpm-version: ["v0.8.0", "v0.9.0", "latest"]
         node-version: ["20.x"]