[services] Tunnelbroker - bump base image version

Summary: We need to bump the base image version for tunnelbroker the same way as for the blob and the backup in D3268.

Test Plan: CI passing

Reviewers: geekbrother, palys-swm, varun, jimpo, ashoat, karol-bisztyga

Reviewed By: ashoat

Subscribers: ashoat, palys-swm, Adrian, atul, benschac

Differential Revision: https://phabricator.ashoat.com/D3439