Switch from super linter to mega linter

[johannaengland]

More info to the configuration of MegaLinter can be found here: https://megalinter.io/latest/configuration/
For example that DEFAULT_BRANCH has been deprecated.

I noticed that flake8 was still throwing errors, possibly because it has never been run on the full codebase, only on changes, so I added two #noqa and added one template file to the files that are ignored by flake8.

After approval I will set VALIDATE_ALL_CODEBASE to only do a full run on pushes to master, otherwise just linting the difference.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 56.37%. Comparing base (2d9827d) to head (371fa36).
Report is 14 commits behind head on master.

Additional details and impacted files

@@           Coverage Diff           @@
##           master    #2941   +/-   ##
=======================================
  Coverage   56.37%   56.37%           
=======================================
  Files         602      602           
  Lines       43813    43813           
  Branches       48       48           
=======================================
  Hits        24700    24700           
  Misses      19101    19101           
  Partials       12       12           

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[lunkwill42]

Looks ok to me. I'm not sure why we have flake8 config in tox.ini and black in pyproject.toml. Flake8 should really be moved to pyproject.toml also, but since you're attempting to replace it with ruff, I'd wait for that instead :)

[johannaengland]

Looks ok to me. I'm not sure why we have flake8 config in tox.ini and black in pyproject.toml. Flake8 should really be moved to pyproject.toml also, but since you're attempting to replace it with ruff, I'd wait for that instead :)

Flake8 does not support pyproject.toml, but since I am removing flake8 anyway in #2961 we don't have to worry about it