Move to `hatch` as a python project tool about gallagher HOT 4 OPEN

Seeing that hatch can run commands and manage the environments, we might not actually need our Taskfile anymore.

I will investigate this further, document it and then make a decision based on what I am able to automate.

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Notes to follow up on post migration:

• Github action will need to change to use hatch to manage dependencies and run the tests
• Documentation needs to be updated to reflect how we use hatch in the project
• Notes around how dependencies are managed when using hatch

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Leaving a note her that hatch does not support lock files at the moment and package dependency management is still done by editing pyproject.tom (or from what I can see anyway).

Studying the venn diagram and watching @zotroneneis's presentation, peotry may still be our most viable option for now (apart from it missing managing version numbers)

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See comment on anomaly/lab-python-server by @juftin highlighting pip-compile

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