Remove source code volume from docker setup.
Remove source code volume from docker setup.

f6011cf291292967d49d22d3c5421755b9f484b3 changed the setup to use a docker volume for the code. This meant that code changes wouldn't be updated in the containers.

This commit basically reverts this changes.

code-corps/code-corps-api,crodriguez1a/code-corps-api,code-corps/code-corps-api,crodriguez1a/code-corps-api