[BUG-FIX] Passing region_name to ses to process the failure alerts
[BUG-FIX] Passing region_name to ses to process the failure alerts

Summary: Email Alert notification upon luigi task failures due to missing region_name

Test Plan: Executed the commands locally

Reviewers: samson, david

Reviewed By: david

Subscribers: frost, hyang, andy, jack

Differential Revision: https://phab.wish.com/D52252

ContextLogic/luigi,ContextLogic/luigi,ContextLogic/luigi,ContextLogic/luigi