Merge pull request ocaml#22745 from samoht/cow

Old version of cow does not work with OCaml 5

Author: kit-ty-kate

packages/cow/cow.2.2.0/opam

@@ -17,7 +17,7 @@ tags: [
 dev-repo: "git+https://github.com/mirage/ocaml-cow.git"
 build: ["ocaml" "pkg/pkg.ml" "build" "--pinned" "%{pinned}%"]
 depends: [
-  "ocaml" {>= "4.02.3"}
+  "ocaml" {>= "4.02.3" & < "5.0"}
   "ocamlfind" {build}
   "ocamlbuild" {build}
   "topkg" {build}