modify user update account api check

app/forms/users/update_account_form.rb

@@ -5,8 +5,8 @@ class Users::UpdateAccountForm
   attr_accessor :nickname, :name, :show_realname, :gender, :location, :location_city,
                 :identity, :student_id, :technical_title, :school_id, :department_id
 
-  validates :nickname, presence: true
+  validates :nickname, presence: true, length: { maximum: 20 }
-  validates :name, presence: true
+  validates :name, presence: true, length: { maximum: 10 }
   validates :gender, presence: true, numericality: { only_integer: true }, inclusion: { in: [0, 1] }
   validates :location, presence: true
   validates :location_city, presence: true