[terraform] set up tracing error alarms for tunnelbroker on cloudwatch

Summary:
Cloudwatch alarms for tracing error logs on tunnelbroker

Depends on D13472

Test Plan: Triggered all alarms through launching a test tunnelbroker image on staging which immediately logged all relevant error types

Reviewers: bartek, varun

Reviewed By: bartek, varun

Subscribers: ashoat, tomek

Differential Revision: https://phab.comm.dev/D13471