Merge pull request #24111 from haochenx/conan.0.0.3-ocaml-constraint

Mark conan.0.0.3 incompatible with OCaml 5.1+

Author: mseri

packages/conan/conan.0.0.3/opam

@@ -10,7 +10,7 @@ homepage: "https://github.com/mirage/conan"
 doc: "https://mirage.github.io/conan/"
 bug-reports: "https://github.com/mirage/conan/issues"
 depends: [
-  "ocaml"               {>= "4.08.0"}
+  "ocaml"               {>= "4.08.0" & < "5.1~"}
   "re"                  {>= "1.9.0"}
   "dune"                {>= "2.9.0"}
   "uutf"