feat(eventstore): Do not query Snuba if event ID format is invalid (#14327)
feat(eventstore): Do not query Snuba if event ID format is invalid (#14327)

The get_event_by_id method checks that the event ID is a valid UUID
before sending the query to Snuba, and returns None immediately if
invalid.
mvaled/sentry,beeftornado/sentry,beeftornado/sentry,mvaled/sentry,mvaled/sentry,beeftornado/sentry,mvaled/sentry,mvaled/sentry,mvaled/sentry