Add dev feature (e.g. pre-commit) to default pixi environment

[backmari]

Short description of the changes:

pre-commit wasn't run in the default pixi environment, since the dev feature, which includes pre-commit, wasn't added to the default environment. This PR adds the dev feature to the default environment to ensure pre-commit is running as expected. This also fixes linting errors (mostly line length) found by pre-commit/ruff.

Check list for the pull request

• I have read the [CONTRIBUTING]
• I have read the [CODE_OF_CONDUCT]
• I have added tests for my changes
• I have updated the documentation accordingly

Check list for the reviewer

• I have read the [CONTRIBUTING]
• I have verified the proposed changes
• best software practices
  • all internal functions have an underbar, as is python standard
  • clearly named variables (better to be verbose in variable names)
  • code comments explaining the intent of code blocks
• All the tests are passing
• The documentation is up to date
• code comments added when explaining intent

Manual test for the reviewer

References

[codecov]

Codecov Report

❌ Patch coverage is 72.72727% with 12 lines in your changes missing coverage. Please review.
✅ Project coverage is 81.40%. Comparing base (b2aa180) to head (68d6693).
⚠️ Report is 2 commits behind head on main.

Files with missing lines	Patch %	Lines
postprocessing/Consumer.py	44.44%	5 Missing ⚠️
postprocessing/processors/base_processor.py	50.00%	2 Missing ⚠️
postprocessing/processors/test_processor.py	0.00%	2 Missing ⚠️
postprocessing/reduction_script_writer.py	77.77%	2 Missing ⚠️
postprocessing/processors/reduction_processor.py	80.00%	1 Missing ⚠️

Additional details and impacted files

@@           Coverage Diff           @@
##             main      #99   +/-   ##
=======================================
  Coverage   81.40%   81.40%           
=======================================
  Files          16       16           
  Lines        1264     1264           
=======================================
  Hits         1029     1029           
  Misses        235      235           

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[peterfpeterson]

I can now run pre-commit in my local checkout. I didn't realize it was not actually running on the code. Thanks for the fix.