Run Black and Flake8

[kkappler]

• the only thing that changed besides formatting was some factoring in process_mth5 which flake 8 said was too complex

[codecov]

Codecov Report

Merging #292 (3a0fe55) into fourier_coefficients (826a809) will increase coverage by 0.13%.
The diff coverage is 73.55%.

@@                   Coverage Diff                    @@
##           fourier_coefficients     #292      +/-   ##
========================================================
+ Coverage                 74.24%   74.37%   +0.13%     
========================================================
  Files                        86       86              
  Lines                      5509     5514       +5     
========================================================
+ Hits                       4090     4101      +11     
+ Misses                     1419     1413       -6     

Files Changed	Coverage Δ
aurora/config/metadata/processing.py	77.96% <ø> (ø)
aurora/config/metadata/station.py	0.00% <ø> (ø)
aurora/pipelines/run_summary.py	79.20% <ø> (+0.62%)	⬆️
aurora/sandbox/debug_mt_metadata_issue_85.py	0.00% <ø> (ø)
aurora/sandbox/mth5_helpers.py	0.00% <0.00%> (ø)
aurora/transfer_function/plot/comparison_plots.py	100.00% <ø> (ø)
tests/io/test_issue_139.py	93.47% <ø> (ø)
tests/io/test_matlab_zfile_reader.py	80.00% <ø> (ø)
tests/synthetic/test_multi_run.py	97.46% <ø> (ø)
tests/synthetic/test_fourier_coefficients.py	80.32% <50.00%> (ø)
... and 13 more