chore: bump schema version to 27

Author: xsahil03x

packages/stream_chat_persistence/lib/src/db/drift_chat_database.dart

@@ -55,7 +55,7 @@ class DriftChatDatabase extends _$DriftChatDatabase {
 
   // you should bump this number whenever you change or add a table definition.
   @override
-  int get schemaVersion => 26;
+  int get schemaVersion => 27;
 
   @override
   MigrationStrategy get migration => MigrationStrategy(