Pipen-cli-run

- Remove Pipeline, use pipen_args.ProcGroup instead
- Bump pipen to 0.5
- Bump pipen-args to 0.6
- Use latest actions for CI

**Full Changelog**: https://github.com/pwwang/pipen-cli-run/compare/0.4.1...0.5.0

- 🩹 Fix when Pipeline.defaults is None
- ✅ Fix test with pytest-xdist ^3

**Full Changelog**: https://github.com/pwwang/pipen-cli-run/compare/0.4.0...0.4.1

- ✨ Add decorator process to build processes under a pipeline


python
from pipen_cli_run import Pipeline, process

class MyPipeline(Pipeline):
process(start=True)
def build_p1(self):
return ... a pipen.Proc object

process(end=True)
def build_p2(self, p1):
proc = ... a pipen.Proc object
proc.requires = p1
return proc

def build(self):
p1 = self.build_p1()
self.build_p2(p1)


**Full Changelog**: https://github.com/pwwang/pipen-cli-run/compare/0.3.2...0.4.0

- ⬆️ Bump pipen-args to 0.3.3

**Full Changelog**: https://github.com/pwwang/pipen-cli-run/compare/0.3.1...0.3.2

- [🩹 Exclude Pipeline for module when listing pipelines](https://github.com/pwwang/pipen-cli-run/commit/b7b9152619aa8650b0843f3ecd85ed83d15c1bb4)

**Full Changelog**: https://github.com/pwwang/pipen-cli-run/compare/0.3.0...0.3.1

- ⬆️ Pump pipen to 0.3.8
- ✨ Add Pipeline to assemble a pipeline