Adapt to rocq-prover/rocq#19390 (goptions tables can discharge) + fix module substitution

Author: SkySkimmer

src/plugin/opt.ml

@@ -256,7 +256,9 @@ module HammerFilter = struct
   type t = Names.ModPath.t
   module Set = FilterSet
   let encode env = Nametab.locate_module
-  let subst s m = m
+  let check_local _ _ = ()
+  let discharge x = x
+  let subst = Mod_subst.subst_mp
   let printer m = Names.DirPath.print (Nametab.dirpath_of_module m)
   let key = ["Hammer"; "Filter"]
   let title = "Hammer Filter"