aifad.2.3.0: add menhir lower bound (uses --infer-write-query)

Author: mseri

packages/aifad/aifad.2.3.0/opam

@@ -13,7 +13,7 @@ bug-reports: "https://github.com/mmottl/aifad/issues"
 depends: [
   "dune" {>= "2.7"}
   "ocaml" {>= "4.04"}
-  "menhir"
+  "menhir" {>= "20180523"}
   "res"
   "pcre"
   "cfg" {>= "2.1"}