* New Source: Datadog * Updating doc * Adding unit tests * Renaming limit var * Updating description in spec * add source def to seed * add datadog to source def seed * run format * auto-bump connector version Co-authored-by: marcosmarxm <marcosmarxm@gmail.com> Co-authored-by: Octavia Squidington III <octavia-squidington-iii@users.noreply.github.com>