fix(moxxy): Fix dependency compatibility with moxxmpp and Moxxy

pubspec.yaml

@@ -8,11 +8,11 @@ environment:
   sdk: ">=3.0.0 <4.0.0"
 
 dependencies:
-  collection: ^1.19.0
+  collection: ^1.18.0
   cryptography: ^2.7.0
   hex: ^0.2.0
   logging: ^1.2.0
-  meta: ^1.16.0
+  meta: ^1.15.0
   moxlib:
     version: ^0.2.0
     hosted: https://git.polynom.me/api/packages/Moxxy/pub