Fix development environment admin account not being auto-approved (#29958)

db/seeds/04_admin.rb

@@ -7,5 +7,7 @@ if Rails.env.development?
   admin = Account.where(username: 'admin').first_or_initialize(username: 'admin')
   admin.save(validate: false)
 
-  User.where(email: "admin@#{domain}").first_or_initialize(email: "admin@#{domain}", password: 'mastodonadmin', password_confirmation: 'mastodonadmin', confirmed_at: Time.now.utc, role: UserRole.find_by(name: 'Owner'), account: admin, agreement: true, approved: true).save!
+  user = User.where(email: "admin@#{domain}").first_or_initialize(email: "admin@#{domain}", password: 'mastodonadmin', password_confirmation: 'mastodonadmin', confirmed_at: Time.now.utc, role: UserRole.find_by(name: 'Owner'), account: admin, agreement: true, approved: true)
+  user.save!
+  user.approve!
 end