Run black and update setup.cfg for flake8 to ignore E701 and E704

[Tim-Thomas]

This re-formats everything to match current black configuration and allow flake8 to succeed.

[Tim-Thomas]

This seems to be a deliberate change to black: https://github.com/psf/black/pull/4066/files and the conflict with flake8 as well as the solution (tell flake8 to ignore e701 and e704) is documented here: psf/black#4173

[codecov]

Codecov Report

Attention: 5 lines in your changes are missing coverage. Please review.

Comparison is base (4a09533) 93.73% compared to head (307f4fd) 93.72%.

Files	Patch %	Lines
faust/transport/consumer.py	50.00%	0 Missing and 2 partials ⚠️
faust/contrib/sentry.py	0.00%	1 Missing ⚠️
faust/livecheck/case.py	50.00%	0 Missing and 1 partial ⚠️
faust/sensors/base.py	0.00%	0 Missing and 1 partial ⚠️

Additional details and impacted files

@@ Coverage Diff @@## master #609 +/- ##
==========================================
- Coverage 93.73% 93.72% -0.02% 
==========================================
Files 102 102 Lines 11158 11122 -36 Branches 1536 1545 +9 ==========================================
- Hits 10459 10424 -35 + Misses 612 607 -5 - Partials 87 91 +4 

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[wbarnha]

Thank you for this PR as well! LGTM!