[Services] Update tunnelbroker Dockerfile & cmake

Summary:
Reflect the changes to installing
the dependencies versus just adding the source
directories

This breaks backup as the docker image isn't updated until D4494
This breaks blob as the docker image + cmake isn't updated until D4493

Test Plan:
Docker workflow:

docker build . -f services/tunnelbroker/Dockerfile

Before this is merged, base-image will need to be updated to reference
new docker hub image

Nix worfklow

nix develop
cd services/tunnelbroker
mkdir build && cd build && cmake .. && make

Reviewers: max, atul, karol, abosh

Reviewed By: atul

Subscribers: ashoat, tomek, adrian, abosh

Differential Revision: https://phab.comm.dev/D4671