Update tests to use .name() and rely on wrapper id

[clavedeluna]

Overview

I noticed we forgot to update tests when we changed the codemod API. I think this is the way to go to encourage us to use .name() instead of accessing the metadata attr directly.

Secondly, now that we have a codemod wrapper, and in fact the wrapper is what we use to report id in codetf results, then I was able to remove the base_codemod id class attr. It just needed an update in integration tests.

[codecov-commenter]

Codecov Report

Merging #51 (540089b) into main (df11542) will not change coverage.
The diff coverage is n/a.

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##             main      #51   +/-   ##
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  Coverage   96.04%   96.04%           
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  Files          41       41           
  Lines        1593     1593           
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  Hits         1530     1530           
  Misses         63       63           

[drdavella]

❤️ but also maybe still a code smell that indicates we can clean up the class hierarchy a bit.

[clavedeluna]

this is actually because this integration test code is:

1. calling on _codemods. I didn't want to write a class method just for tests calling it
2. bc pylint isn't good at understanding that defining something inside setup_method in pytest is kinda the equivalent of defining it in an init method.