Adapt the CI to the new packages (Setup-ocaml automatically pins the packages)
Adapt the CI to the new packages
(Setup-ocaml automatically pins the packages)

Co-authored-by: Kate <f6f7b7fa6ec6a0d79ea38693ccb1948923d69f95@disroot.org>

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