update dependency

pubspec.yaml

@@ -2,7 +2,7 @@ name: flutter_chat_ui
 description: >
  Actively maintained, community-driven chat UI implementation with an
  optional Firebase BaaS.
-version: 1.5.6
+version: 1.5.7
 homepage: https://flyer.chat
 repository: https://github.com/flyerhq/flutter_chat_ui
 
@@ -19,10 +19,10 @@ dependencies:
  photo_view: ^0.14.0
  visibility_detector: ^0.2.2
  intl: ^0.18.1
- flutter_linkify: ^5.0.2
+ flutter_linkify: ^6.0.0
  html: ^0.15.0
  http: ^1.1.0
- linkify: ^4.1.0
+ linkify: ^5.0.0
  url_launcher: ^6.0.20
  json_annotation: ^4.8.1
  cloud_firestore: ^4.8.5