auth: updateUser throws TypeError when new password is too short

[devj3ns]

Describe the bug
When using the updateUser function to update the users password and providing a too short password, the function throws the following exception:

TypeError: Instance of 'JSArray<dynamic>': type 'List<dynamic>' is not a subtype of type 'List<String>'

To Reproduce
Run the following example code when being logged in with the minimum password setting in the Supabase Dashboard set to a value >3:

final supabase = Supabase.instance.client;
await supabase.auth.updateUser(auth.UserAttributes(password: "123"));

Expected behavior
I would expect the function to throw the AuthWeakPasswordException

Version:
Happens on Android and the Web. Flutter Version: 3.19.5

????????? supabase_flutter 2.5.1
??? ????????? supabase 2.1.1
??? ??? ????????? functions_client 2.0.0
??? ??? ????????? gotrue 2.6.0
??? ??? ????????? postgrest 2.1.1
??? ??? ????????? realtime_client 2.0.4
??? ??? ????????? storage_client 2.0.1

Additional context
I debugged the supbase_flutter code a bit and to me, it looks like the problem is inside the GotrueFetch _handleError function:

supabase-flutter/packages/gotrue/lib/src/fetch.dart

Line 50 in c4e73c7

// Check if weak password reasons only contain strings

I assume the issue is introduced with #879