Set the default value for -path-label to match -path-img

[valosekj]

Description

This PR changes the default value for -path-label to match -path-img. Context: #104

The change simplifies the manual_correction.py syntax as used for the SCT course to

manual_correction.py -config qc_fail.yml -path-img output/data_processed/ -path-out data/derivatives/labels

(i.e., we do not need to specify -path-label now, as it is automatically set to -path-img)

How to test this PR

cd ~/code/manual-correction
git fetch
git checkout jv/104-set_path-label_to_path-img

sct_download_data -d sct_course_data -o sct_course_data_2024
cd sct_course_data_2024/multi_subject
chmod +x process_data.sh
sct_run_batch -script process_data.sh -config config.yml -jobs 3
# Note: you can add `exit` to line 115 to run only the contrast-agnostic model on T2w to save time

$SCT_DIR/python/envs/venv_sct/bin/python ~/code/manual-correction/manual_correction.py -config qc_fail.yml -path-img output/data_processed/ -path-out data/derivatives/labels

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Resolves: #104

[sandrinebedard]

tested and works! Thanks @valosekj for this change!

[valosekj]

Thank you @sandrinebedard! I tested the PR again myself and it works. --> merging