core: fix updating invitation link data, use flexible link data encoding for backward/forward compatibility (#5988)

* core: fix updating invitation link data

* ghc 8.10.7 type annotation

* update link data encoding to use long strings for user data

* update encoding

* fix test

* update simplexmq

* rename field

* simplexmq

* remove comments

Co-authored-by: spaced4ndy <8711996+spaced4ndy@users.noreply.github.com>

---------

Co-authored-by: spaced4ndy <8711996+spaced4ndy@users.noreply.github.com>

cabal.project

@@ -12,7 +12,7 @@ constraints: zip +disable-bzip2 +disable-zstd
 source-repository-package
     type: git
     location: https://github.com/simplex-chat/simplexmq.git
-    tag: d9500125300f89bd29377705e7a0e43d2d111707
+    tag: c5b7d3c7afb8c0df8d329885db09b08c2e88109c
 
 source-repository-package
     type: git