opam: depend on js_of_ocaml < 6.0.0

Author: balat

eliom.opam

@@ -22,7 +22,7 @@ depends: [
   "ocamlfind"
   "ppx_deriving"
   "ppxlib" {>= "0.15.0"}
-  "js_of_ocaml-compiler" {>= "5.5.0"}
+  "js_of_ocaml-compiler" {>= "5.5.0" & < "6.0.0"}
   "js_of_ocaml" {>= "5.5.0"}
   "js_of_ocaml-lwt" {>= "5.5.0"}
   "js_of_ocaml-ocamlbuild" {build}