UTF-8 Encoding errors logging to production_json.log
https://log.gprd.gitlab.net/goto/8cfb09c2de688ba6eb4b2481ef870245 shows that we are seeing a significant number of UndefinedConversionError
errors:
I'm seeing something similar in the Sidekiq formatter (https://sentry.gitlab.net/gitlab/gitlabcom/issues/2821048/).
Maybe we should force a conversion to UTF-8 in these formatters?
/cc: @engwan, @smcgivern