Various fixes & improvements
- ref(debug-files): Use temp file handle instead of keeping zips in memory (#1641) by @kamilogorek
- feat(crons): Bring back legacy token-auth checkin API (#1634) by @evanpurkhiser
- ref: Unhide sourcemaps inject command as its already GA (#1631) by @kamilogorek
- ref: Match case-insensitive value when finding repo by name (#1629) by @maxnowack
- ref(inject): Inject code snippet at the start (#1567) by @loewenheim
- feat(crons): Replace API checkins w/ send_envelope (#1618) by @evanpurkhiser