Always run tests on the latest OCaml 4 and 5

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

Author: smorimoto

.github/workflows/workflow.yml

@@ -18,9 +18,8 @@ jobs:
           - macos-latest
           - ubuntu-latest
         ocaml-compiler:
-          - "4.14"
-          - "5.2"
-          - "5.3"
+          - 5
+          - 4
 
     runs-on: ${{ matrix.os }}
 
@@ -47,7 +46,7 @@ jobs:
       - name: Set-up OCaml
         uses: ocaml/setup-ocaml@v3
         with:
-          ocaml-compiler: "4.14"
+          ocaml-compiler: 4
           dune-cache: true
 
       - uses: ocaml/setup-ocaml/lint-fmt@v3