Pyrefly should work in popular CI tools

[lolpack]

Pyrefly should have an easy to configure CI package for github and other popular CI platforms.

Which CI platforms do we support?

What minimal config in the CI should be the default?

[asukaminato0721]

As a reference, langgenius/dify#22592, the minimal only requires 2 lines

uv add --dev pyrefly
uv run pyrefly check || true

[rchen152]

Remaining work:

• Add a dedicated GitHub action

[connernilsen]

Fixed by the commits made by @NathanTempest