Fix formatting

[anilyil]

Purpose

Fix formatting stuff from #221

Expected time until merged

Type of change

• Bugfix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (non-backwards-compatible fix or feature)
• Code style update (formatting, renaming)
• Refactoring (no functional changes, no API changes)
• Documentation update
• Maintenance update
• Other (please describe)

Testing

Checklist

• I have run flake8 and black to make sure the Python code adheres to PEP-8 and is consistently formatted
• I have formatted the Fortran code with fprettify or C/C++ code with clang-format as applicable
• I have run unit and regression tests which pass locally with my changes
• I have added new tests that prove my fix is effective or that my feature works
• I have added necessary documentation

[codecov]

Codecov Report

Merging #223 (be06960) into main (e6c1746) will not change coverage.
The diff coverage is 100.00%.

@@           Coverage Diff           @@
##             main     #223   +/-   ##
=======================================
  Coverage   64.72%   64.72%           
=======================================
  Files          47       47           
  Lines       12055    12055           
=======================================
  Hits         7802     7802           
  Misses       4253     4253           

Files	Coverage Δ
pygeo/parameterization/DVGeo.py	68.82% <100.00%> (ø)

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