Fix a small typo in GitHub Actions workflow file
Fix a small typo in GitHub Actions workflow file

Signed-off-by: Sora Morimoto <05d3fe3905f98ae89213fefee6827df133f2b2a1@morimoto.io>

ocaml/merlin,ocaml/merlin,rgrinberg/merlin,ocaml/merlin,rgrinberg/merlin,ocaml/merlin,rgrinberg/merlin,rgrinberg/merlin