Improve our CI tests (#11476)

* add a test and dry-run to qmk generate-api

* add a dry-run to qmk pyformat

* Add a --dry-run to qmk cformat

* reverse the order of nose2 and flake8 tests

* run CI test against cformat and pyformat

* fix programming errors

* tweak job name

* fix argument

* refine the files we select

* fix stack trace in --ci

* make cformat exit clean

* fix c file extensions

* decouple CI from pyformat

* remove --ci arg

* make ci happy

* use the environment var instead

* change output to text

* fix log message

* replace tabs

lib/python/qmk/cli/pytest.py

@@ -11,6 +11,7 @@ from milc import cli
 def pytest(cli):
     """Run several linting/testing commands.
     """
-    flake8 = subprocess.run(['flake8', 'lib/python', 'bin/qmk'])
     nose2 = subprocess.run(['nose2', '-v'])
+    flake8 = subprocess.run(['flake8', 'lib/python', 'bin/qmk'])
+
     return flake8.returncode | nose2.returncode