Merge both "pip install" RUN commands in tox/Dockerfile (!18) · Merge requests · Platform / Infrastructure / CI CD / Dockerfiles for Jenkins

as a workaround of dependency glitch (radon wants colorama 0.4.1, twine wants colorama >= 0.4.3).

Doing only one pip install command enforce the newer colorama version.

Migrated from D3457 (view on Phabricator)

Merge both "pip install" RUN commands in tox/Dockerfile