Changed module name from my_auth to myauth

Changed encryption algorithm to argon2
Added unit tests

tests/persistence/test_sqlite_user.py

@@ -4,9 +4,9 @@ import pytest
 import json
 from datetime import datetime
 
-from my_auth.persistence.sqlite import SQLiteUserRepository
-from my_auth.models.user import UserCreate, UserUpdate
-from my_auth.exceptions import UserAlreadyExistsError, UserNotFoundError
+from myauth.persistence.sqlite import SQLiteUserRepository
+from myauth.models.user import UserCreate, UserUpdate
+from myauth.exceptions import UserAlreadyExistsError, UserNotFoundError
 
 
 def test_i_can_create_and_retrieve_user_by_email(user_repository: SQLiteUserRepository,