Adopt to black 20.8b

[HiromuHota]

Description of the problems or issues

Is your pull request related to a problem? Please describe.

Black has been updated to 20.8b just recently, which made #497 fail.

Does your pull request fix any issue.

N/A.

Description of the proposed changes

• Reformat codes to comply with black 20.8b
• Print versions of check tools
• Update .pre-commit-config.yaml
• Remove seed-isort-config from .pre-commit-config.yaml as "this is no longer needed as of isort>=5" (https://github.com/asottile-archive/seed-isort-config)

Test plan

Existing tests would be good enough.

Checklist

• [ ] I have updated the documentation accordingly.
• [ ] I have added tests to cover my changes.
• [x] All new and existing tests passed.
• [ ] I have updated the CHANGELOG.rst accordingly.

[codecov-commenter]

Codecov Report

Merging #499 into master will not change coverage. The diff coverage is 100.00%.

@@           Coverage Diff           @@
##           master     #499   +/-   ##
=======================================
  Coverage   85.76%   85.76%           
=======================================
  Files          88       88           
  Lines        4567     4567           
  Branches      853      853           
=======================================
  Hits         3917     3917           
  Misses        466      466           
  Partials      184      184           

Flag	Coverage Δ
#unittests	85.76% <100.00%> (ø)

Flags with carried forward coverage won't be shown. Click here to find out more.

Impacted Files	Coverage Δ
src/fonduer/parser/visual_linker.py	84.18% <ø> (ø)
src/fonduer/utils/visualizer.py	80.00% <ø> (ø)
src/fonduer/parser/models/utils.py	84.61% <100.00%> (ø)