[wp] Why3 bumped to 1.6.0

opam

@@ -121,7 +121,7 @@ depends: [
   "ocaml" { >= "4.11.1" }
   "ocamlfind" # needed beyond build stage, used by -load-module
   "ocamlgraph" { >= "1.8.8" }
-  "why3" { >= "1.5.1" }
+  "why3" { >= "1.6.0" }
   "yojson" {>= "1.6.0" & (>= "2.0.1" | !with-test)}
   "zarith" { >= "1.5" }
 

reference-configuration.md

@@ -13,6 +13,6 @@ compiling Frama-C+dev.
 - ocamlgraph.2.0.0
 - ppx_deriving_yojson.3.7.0
 - ppx_import.1.10.0
-- why3.1.5.1
+- why3.1.6.0
 - yojson.2.0.2
 - zarith.1.12

src/plugins/wp/Changelog

@@ -24,6 +24,7 @@
 Plugin WP <next-release>
 ########################
 
+- WP          [2023-03-14] Upgrade to Why3 1.6.0
 - WP          [2023-02-03] new option -wp-why3-extra-config for providing
                            additional Why3 configuration files