Updated `testing/utils/conftest.py` with reliable mock data that can be used in tests; added `shared/workspaces` tests

updated coveragerc config files to reflect changes to the shared packages location and modified run-tests.sh

Renamed docker-compose.local.yml to docker-compose.yml
Renamed Condaless.dockerfile.v2 to Dockerfile.base
Modified references to files that were renamed

system since I figure that's on its way out the door)