message: [CI] install ocaml in CI
diff: @@ -19,10 +19,13 @@ jobs:
  run: |
  rustup component add rustfmt
  + - name: Setup OCaml (because of ocaml-gen)
  + run: sudo apt update && sudo apt install ocaml
  +
  - name: build
  run: |
  cargo build
  - name: build ocaml types
  run: |
  - cargo build --features ocaml_type
  + cargo build --features ocaml_types
  