[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