Add more runner os

Signed-off-by: Sora Morimoto <[email protected]>

Author: smorimoto

.github/workflows/workflow.yml

@@ -35,7 +35,9 @@ jobs:
       matrix:
         os:
           - ubuntu-latest
+          - ubuntu-slim
           - macos-latest
+          - macos-15-intel
           - windows-latest
         ocaml-compiler:
           - "5.3"