Bad requests shouldn't create Sentry errors

[juliangruber]

#293 (comment)

The reason for this Sentry error was a bad client request, which is a client error and not a server error, and therefore shouldn't be logged to Sentry.

[juliangruber]

This is a known Sentry / Fastify issue: getsentry/sentry-javascript#13197

[juliangruber]

Until getsentry/sentry-javascript#13198 lands, looks like getsentry/sentry-javascript#13197 (comment) is our temporary fix