Enable running unit tests via docker-compose

[windiana42]

Out of the box, the current database tests don't run for me (Linux) and I am not sure, I want to configure my machine such that this mechanism works. Here is the error message:

E   requests.exceptions.HTTPError: 409 Client Error: Conflict for url: http+docker://localhost/v1.42/containers/create?name=bcpandas-mssql-container
        http_error_msg = ('409 Client Error: Conflict for url: '
 'http+docker://localhost/v1.42/containers/create?name=bcpandas-mssql-container')
        reason     = 'Conflict'
        self       = <Response [409]>

What I would prefer is that for database tests to run, I can issue a docker-compose up command. Launching containers via docker-compose is also nicely supported by github actions. But this might be just my personal opinion.