Decide what to do about B008

[callumforrester]

B008 discourages function calls in default arguments e.g.

def foo(bar = bar_factory()): ...

This is a pattern commonly used in our codebase, such as inject in the link below. I think we're expecting to continue it even after lazy devices are supported (see #483), so plans would look something like:

def my_plan(x: Motor = i03.x()): ...

This issue is to discuss whether we should configure our projects to ignore the error and allow this behaviour because we know best, or follow ruff best practices and find another way to inject devices.

I'm going to throw in an early vote for the latter.

Originally posted by @callumforrester in #737 (comment)

[stan-dot]

our specific use case is the device-singleton one, and the linked ruff page says this:
If the use of a singleton is intentional, assign the result call to a module-level variable, and use that variable in the default argument:

which is consistent with how the i22 stopflow plan uses PANDA = inject("panda1")