[qa] Changes to docformatter; Update minimum Python version to 3.9

tests/test_mc_ch_in_11k_RS.py

 # SPDX-FileCopyrightText: Copyright © 2023 Idiap Research Institute <contact@idiap.ch>
 #
 # SPDX-License-Identifier: GPL-3.0-or-later
-
 """Tests for the aggregated Montgomery-Shenzhen-Indian-tbx11k_simplified
 dataset."""
 

tests/test_mc_ch_in_11kv2.py

 # SPDX-FileCopyrightText: Copyright © 2023 Idiap Research Institute <contact@idiap.ch>
 #
 # SPDX-License-Identifier: GPL-3.0-or-later
-
 """Tests for the aggregated Montgomery-Shenzhen-Indian dataset."""
 
 import pytest

tests/test_mc_ch_in_11kv2_RS.py

 # SPDX-FileCopyrightText: Copyright © 2023 Idiap Research Institute <contact@idiap.ch>
 #
 # SPDX-License-Identifier: GPL-3.0-or-later
-
 """Tests for the aggregated Montgomery-Shenzhen-Indian-tbx11k_simplified_v2
 dataset."""
 

tests/test_mc_ch_in_RS.py

 # SPDX-FileCopyrightText: Copyright © 2023 Idiap Research Institute <contact@idiap.ch>
 #
 # SPDX-License-Identifier: GPL-3.0-or-later
-
 """Tests for the aggregated Montgomery-Shenzhen-Indian dataset."""
 
 import pytest

tests/test_mc_ch_in_pc.py

 # SPDX-FileCopyrightText: Copyright © 2023 Idiap Research Institute <contact@idiap.ch>
 #
 # SPDX-License-Identifier: GPL-3.0-or-later
-
 """Tests for the aggregated Montgomery-Shenzhen-Indian-Padchest dataset."""
 
 import pytest

tests/test_mc_ch_in_pc_RS.py

 # SPDX-FileCopyrightText: Copyright © 2023 Idiap Research Institute <contact@idiap.ch>
 #
 # SPDX-License-Identifier: GPL-3.0-or-later
-
 """Tests for the aggregated Montgomery-Shenzhen-Indian-Padchest(TB) dataset."""
 
 import pytest

tests/test_measures.py

 # SPDX-FileCopyrightText: Copyright © 2023 Idiap Research Institute <contact@idiap.ch>
 #
 # SPDX-License-Identifier: GPL-3.0-or-later
-
 """Tests for measure functions."""
 
 import random

tests/test_nih_cxr14.py

 # SPDX-FileCopyrightText: Copyright © 2023 Idiap Research Institute <contact@idiap.ch>
 #
 # SPDX-License-Identifier: GPL-3.0-or-later
-
 """Tests for NIH CXR14 dataset."""
 
 import pytest

tests/test_nih_cxr14_pc.py

 # SPDX-FileCopyrightText: Copyright © 2023 Idiap Research Institute <contact@idiap.ch>
 #
 # SPDX-License-Identifier: GPL-3.0-or-later
-
 """Tests for the aggregated NIH CXR14-PadChest dataset."""
 
 import pytest

tests/test_pc.py

 # SPDX-FileCopyrightText: Copyright © 2023 Idiap Research Institute <contact@idiap.ch>
 #
 # SPDX-License-Identifier: GPL-3.0-or-later
-
 """Tests for Padchest dataset."""
 
 import pytest

tests/test_pc_RS.py

 # SPDX-FileCopyrightText: Copyright © 2023 Idiap Research Institute <contact@idiap.ch>
 #
 # SPDX-License-Identifier: GPL-3.0-or-later
-
 """Tests for Extended Padchest dataset."""
 
 import pytest

tests/test_shenzhen.py

 # SPDX-FileCopyrightText: Copyright © 2023 Idiap Research Institute <contact@idiap.ch>
 #
 # SPDX-License-Identifier: GPL-3.0-or-later
-
 """Tests for Shenzhen dataset."""
 
 import importlib

tests/test_tbpoc.py

 # SPDX-FileCopyrightText: Copyright © 2023 Idiap Research Institute <contact@idiap.ch>
 #
 # SPDX-License-Identifier: GPL-3.0-or-later
-
 """Tests for TB-POC dataset."""
 
 import pytest

tests/test_tbpoc_RS.py

 # SPDX-FileCopyrightText: Copyright © 2023 Idiap Research Institute <contact@idiap.ch>
 #
 # SPDX-License-Identifier: GPL-3.0-or-later
-
 """Tests for TB-POC_RS dataset."""
 
 import pytest

tests/test_tranforms.py

 # SPDX-FileCopyrightText: Copyright © 2023 Idiap Research Institute <contact@idiap.ch>
 #
 # SPDX-License-Identifier: GPL-3.0-or-later
-
 """Tests for transforms."""
 
 import numpy