[release] fix fc reference version

dune-project

@@ -31,7 +31,7 @@
  (depends
   (ocaml (>= 4.13.1))
   (dune (<> 3.13.0)) ; performance problem
-  (frama-c (and (>= 29.0+dev) (< 30.0~)))
+  (frama-c (and (>= 30.0~) (< 31.0~)))
  )
  (depopts
    conf-swi-prolog  ; for the deduction features of MetAcsl

frama-c-metacsl.opam

@@ -11,7 +11,7 @@ tags: [
 depends: [
   "ocaml" {>= "4.13.1"}
   "dune" {>= "3.13" & != "3.13.0"}
-  "frama-c" {>= "29.0+dev" & < "30.0~"}
+  "frama-c" {>= "30.0~" & < "31.0~"}
   "odoc" {with-doc}
 ]
 depopts: [