Fix CI

Blocking

The continuous integration seems broken (see this job for instance), and this completely prevents us from updating the reference.

Arvid gave some some clues that could help fix the issue: update python, poetry, and pip to use the same versions than Tezos's:

• python 3.10.5;
• poetry 1.1.13;
• pip.

Then, locally run a poetry install. If it succeeds, it should update the poetry.lock file. Finally, locally build the docker file (this is needed to update poetry's version).