just some formatting fixes with the help of sourcery

[vuillaut]

No description provided.

[codecov]

Codecov Report

Merging #151 (cf17a86) into master (dd59f45) will decrease coverage by 0.10%.
The diff coverage is 75.00%.

@@            Coverage Diff             @@
##           master     #151      +/-   ##
==========================================
- Coverage   64.55%   64.44%   -0.11%     
==========================================
  Files          21       21              
  Lines        2542     2526      -16     
==========================================
- Hits         1641     1628      -13     
+ Misses        901      898       -3     

Impacted Files	Coverage Δ
ctaplot/plots/plots.py	77.24% <66.66%> (-0.11%)	⬇️
ctaplot/ana/ana.py	87.85% <100.00%> (+0.13%)	⬆️
ctaplot/plots/style.py	100.00% <100.00%> (ø)

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