Fix new rubocop 1.70.0 issues

Author: texpert

app/models/camaleon_cms/post.rb

@@ -83,7 +83,7 @@ def pending?
 
     # check if this is in draft status
     def draft?
-      status == 'draft' || status == 'draft_child'
+      %w[draft draft_child].include?(status)
     end
 
     def draft_child?

app/models/camaleon_cms/post_type.rb

@@ -179,7 +179,7 @@ def set_default_site_user_roles
 
     # destroy all custom field groups assigned to this post type
     def destroy_field_groups
-      if !destroyed_by_association.present? && (slug == 'post' || slug == 'page')
+      if !destroyed_by_association.present? && %w[post page].include?(slug)
         errors.add(:base, 'This post type can not be deleted.')
         return false
       end