Docker build failing after poetry transition

[pringshia]

Seems like the Docker builds are failing after the implementation of #779

https:/facebookresearch/Mephisto/runs/7594956450?check_suite_focus=true#step:3:5

Output:

54
Step 8/10 : RUN cd /mephisto && pip install -e .
55
---> Running in c702111e0461
56
ERROR: File "setup.py" or "setup.cfg" not found. Directory cannot be installed in editable mode: /mephisto
57
(A "pyproject.toml" file was found, but editable mode currently requires a setuptools-based build.)

[pringshia]

Going to try looking into the pip version.

Seems to be a bug with the compiled Docker image (only node versions 15 and 10 failing).

We should manually upgrade pip in the Dockerfile to fix this issue. Perhaps:

python -m pip install pip