Possible breaking changes

[matmair]

Things that would be breaking that we could change

• [ ] https://github.com/inventree/InvenTree/issues/5015
• [ ] do not require any envs on docker startup, assume local subfolder /data
• [ ] rename default python env to .venv
• [ ] https://github.com/inventree/InvenTree/discussions/6420 raise to py 3.10
• [ ] rename master to main - main is the new default with a lot of tooling, and I am finding it hard to remember which project uses which

see also https://github.com/inventree/InvenTree/issues/6417