STYLE: Remove trailing whitespaces

[fepegar]

Picked up by pre-commit.

[codecov]

Codecov Report

Merging #346 (4d1e8e9) into main (2d0c629) will increase coverage by 0.03%.
The diff coverage is n/a.

❗ Current head 4d1e8e9 differs from pull request most recent head 325f762. Consider uploading reports for the commit 325f762 to get more accurate results

@@            Coverage Diff             @@
##             main     #346      +/-   ##
==========================================
+ Coverage   76.81%   76.85%   +0.03%     
==========================================
  Files          64       64              
  Lines        5641     5629      -12     
  Branches      898      895       -3     
==========================================
- Hits         4333     4326       -7     
+ Misses       1116     1112       -4     
+ Partials      192      191       -1     

Impacted Files	Coverage Δ
...src/histopathology/datasets/panda_tiles_dataset.py	61.11% <0.00%> (-2.05%)	⬇️
...pathology/configs/classification/DeepSMILEPanda.py	70.58% <0.00%> (-0.43%)	⬇️
...hology/src/histopathology/datasets/base_dataset.py	60.17% <0.00%> (+1.16%)	⬆️

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