Fix spelling of whether to fix the CI

Author: p8

railties/lib/rails/generators/rails/app/templates/config/initializers/new_framework_defaults_7_0.rb.tt

@@ -58,5 +58,5 @@
 
 # Disable partial inserts.
 # This default means that all columns will be referenced in INSERT queries
-# regardless of wether they have a default or not.
-# Rails.application.config.active_record.partial_inserts = false
+# regardless of whether they have a default or not.
+# Rails.application.config.active_record.partial_inserts = false