Fix pylama breakage (pep8 reference no longer works)

[ktbyers]

It came to my attention on both the NAPALM and Netmiko repositories that pylama . no longer worked (for calling the linter).

Basically 'pycodestyle (pep8)' was no longer executed and it would just silently pass (even when you had linting issues). This update should fix this.

[ktbyers]

The W503 linting exclusion was causing linting issues (where what black would correct to would actually fail the linter):

https://stackoverflow.com/questions/57074300/what-is-the-recommended-way-to-break-a-long-if-statement-w504-line-break-after?rq=1

It looked like pycodestyle would always fail regardless of the form I used with either a W503 or a W504 error...so I just chose the one that black used (and disabled the other one).

[ktbyers]

@dbarrosop Can you disable this in GH settings (at least until someone fixes its failures):

CodeQL Expected — Waiting for status to be reported

I don't have access to settings for the Nornir repository (or I would disable it).

Thanks.

[dbarrosop]

Can you disable this in GH settings (at least until someone fixes its failures):

Done.

I don't have access to settings for the Nornir repository (or I would disable it).

Made you owner of the full org so you should have access to the whole thing now.