feat: pis stage for the platform orchestration dag

[javfg]

This PR adds the first stage for the Platform DAG: The one that runs PIS.

In the end it is using Compute Engine machines that are spawned with COOS. They are very fast to spin up (~10 seconds), but quite limited on what they can do.

I've implemented an Airflow Sensor/Operator that is in charge of:

• Spawning a machine
• Attaching disks to it
• Copying config files from a bucket
• Running a docker image with some arguments
• Waiting for the exit code of that docker container
• Repoting a success (exit code 0), or a failure for the task (>0)

Most of the logic is in the gce.py file, which contains that operator.

I also:

• Added airflow-triggerer service to the docker-compose, as we need it for sensors.
• Added an ignore_init setting to interrogate so we don't have to add docstrings to __init__ methods (it's annoying and rarely useful).

I'm opening the PR already although work is well underway for the ETL stage, as this way we can split the code into more manageable chunks for review. Shorter reviews find more things to fix!

I'll leave it as pending for now, until the merge of #13, so I can rebase onto it and fix any problems that arise.

[javfg]

The rationale behind remove interrogate and pydoclint is that we are already checking docstrings with Ruff by using the pydocstyle rules.

Interrogate and Pydoclint are extremely strict, I copypasted a docstring straight from google code and they complain about it. Also, --ignore-init-function and --style google are mutually exclusive and it is a pain to document all __init__ functions.

Let me know if you think this is too big a change.

[javfg]

I cannot reproduce the check error on the poetry lock pre-commit check. We should discuss on loosening those, right now it seems a bit overkill. :)

[project-defiant]

Some minor comments, otherwise well done!

[project-defiant]

@javfg approved. Nice work!

[project-defiant]

@javfg can you drop the poetry.lock check. I had the same issue with it on my previous PR.