chore: update admin user creation for seeds

- Remove environment condition for admin user creation

This change simplifies the admin user creation in the seeds file by
removing the conditional check for the development environment.
As a result, the admin user will be created regardless of the
environment, which may need to be addressed to avoid unintended
consequences in production setups.

db/seeds.rb

@@ -8,7 +8,7 @@
 #     MovieGenre.find_or_create_by!(name: genre_name)
 #   end
 # AdminUser.create!(email: 'admin@example.com', password: 'password', password_confirmation: 'password') if Rails.env.development?
-AdminUser.create!(email: 'admin@example.com', password: 'password', password_confirmation: 'password') if Rails.env.development?
+AdminUser.create!(email: 'admin@example.com', password: 'password', password_confirmation: 'password')
 
 WeatherArt.delete_all
 City.delete_all