feat(Update): implement python package entries

[Jomik]

Description

This PR adds support for python applications, see Moonraker Python Application

Related Tickets & Documents

Discord Thread

Testing:

[update_manager python_test]
type: python
channel: dev
virtualenv: ~/klippy-env
project_name: cartographer
is_system_service: False
managed_services: klipper
info_tags: desc=Python Test

You will have to do the initial install with ~/klippy-env/bin/pip install git+https://github.com/Jomik/cartographer-scanner-klippy.git
To uninstall ~/klippy-env/bin/pip uninstall cartographer

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[optional] Are there any post-deployment tasks we need to perform?

No

[meteyou]

@Jomik can you pls post a working moonraker config for this feature?

[Jomik]

@meteyou I have updated the description with a configuration section and the commands needed.
Do note mainsail-crew/virtual-klipper-printer#41 if you try to test it in the virtual printer.

But you can probably also just adjust the configuration to create its own venv and install into that.

[meteyou]

@Jomik sry for the delay. I double checked the PR and merged it.