DEV: Log any errors for the user csv export (#25422)

Currently when exporting a list of users and there is an error we just
log that there was an error, but we don't show what the issue is in the
logs which makes it really hard to debug in production. This change will
output any errors to the logs.

app/jobs/regular/export_csv_file.rb

@@ -103,7 +103,9 @@ module Jobs
           if upload.persisted?
             user_export.update_columns(upload_id: upload.id)
           else
-            Rails.logger.warn("Failed to upload the file #{zip_filename}")
+            Rails.logger.warn(
+              "Failed to upload the file #{zip_filename}: #{upload.errors.full_messages}",
+            )
           end
         end