feat: Improved password security policy (#2345)

Co-authored-by: Pranav Raj S <pranav@chatwoot.com>

app/builders/account_builder.rb

@@ -2,7 +2,7 @@
 
 class AccountBuilder
   include CustomExceptions::Account
-  pattr_initialize [:account_name!, :email!, :confirmed!, :user, :user_full_name, :user_password]
+  pattr_initialize [:account_name!, :email!, :confirmed, :user, :user_full_name, :user_password]
 
   def perform
     if @user.nil?
@@ -61,11 +61,9 @@ class AccountBuilder
   end
 
   def create_user
-    password = user_password || SecureRandom.alphanumeric(12)
-
     @user = User.new(email: @email,
-                     password: password,
-                     password_confirmation: password,
+                     password: user_password,
+                     password_confirmation: user_password,
                      name: @user_full_name)
     @user.confirm if @confirmed
     @user.save!