tooling: updating notifier to ping first pass reviewers

[alyssawilk]

Risk Level: n/a
Testing: manual
Docs Changes: n/a
Release Notes: n/a

cc @dmitri-d @tonya11en @esmet @KBaichoo @wbpcode @mathetake @RyanTheOptimist so you're not surprised if the bot sends reminders your way :-)

(email filters for to:assign@noreply.github.com helps a lot, but the slackbot nagging is superior)

[adisuissa]

Can you please add me to the first-pass list as well? (my info is in the API_REVIEWERS dict, so should be straight-forward)

[alyssawilk]

oh yeah, I was thinking you'd be set because API reviews, but those only ping when they need API review. Will do!
you may end up getting dual notifications as the one person in both lists - if it's annoying feel free to send me a PR to dedup :-P