[services] Add docker-compose overrides for tests

Summary:
Adds a new docker-compose config that works together with the existing one, and overrides some properties.
Using both configs together gives a test configuration (docker compose -f docker-compose.yml -f docker-compose.tests.yml [COMMAND]).

Most of the config is overriding the environment variables to correctly point to other service containers. The test-commons.env provides environment shared by all containers, that is normally proviced by Nix when outside docker.
Also, a few other properties needed to be overridden:

• Reset custom platform option - tests will compile using the machine native architecture
• Build Identity service with pre-generated OPAQUE keypair - D9508
• Run Blob service in "auto-deletion" mode - D9509
• Terraform inside commtest container needs to have custom localstack address
• Added dedicated volume for build artifacts to speed up builds when running tests multiple tiems in local environment

Depends on D9511

Test Plan:
Added dedicated command to run all tests in local docker:

yarn run-commtest-in-docker

Its equivalent is going to be used on Buildkite

Reviewers: varun, michal, kamil, jon

Reviewed By: michal

Subscribers: ashoat, tomek, wyilio

Differential Revision: https://phab.comm.dev/D9512