Update to ART 1.15.0

[beat-buesser]

This pull request merges the updates of ART 1.15.0 to branch main.

[codecov-commenter]

Codecov Report

Attention: Patch coverage is 78.65260% with 263 lines in your changes missing coverage. Please review.

Project coverage is 85.62%. Comparing base (7691b39) to head (e3708eb).
Report is 912 commits behind head on main.

Files with missing lines	Patch %	Lines
.../object_detection/pytorch_detection_transformer.py	63.26%	57 Missing and 15 partials ⚠️
art/estimators/object_detection/detr.py	73.87%	53 Missing and 5 partials ⚠️
art/estimators/regression/pytorch.py	0.00%	20 Missing ⚠️
...nces/trainer/adversarial_trainer_trades_pytorch.py	87.73%	6 Missing and 7 partials ⚠️
...mators/object_detection/pytorch_object_detector.py	84.50%	4 Missing and 7 partials ⚠️
art/estimators/object_detection/utils.py	66.66%	9 Missing and 2 partials ⚠️
art/preprocessing/image/image_square_pad/numpy.py	86.36%	4 Missing and 5 partials ⚠️
...rt/preprocessing/image/image_square_pad/pytorch.py	86.56%	4 Missing and 5 partials ⚠️
...preprocessing/image/image_square_pad/tensorflow.py	86.36%	4 Missing and 5 partials ⚠️
...ion/adversarial_patch/adversarial_patch_pytorch.py	36.36%	7 Missing ⚠️
... and 11 more

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #2207      +/-   ##
==========================================
- Coverage   85.63%   85.62%   -0.02%     
==========================================
  Files         297      308      +11     
  Lines       26520    27448     +928     
  Branches     4864     5044     +180     
==========================================
+ Hits        22711    23502     +791     
- Misses       2571     2667      +96     
- Partials     1238     1279      +41     

Flag	Coverage Δ
	20.68% <33.46%> (?)

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Files with missing lines	Coverage Δ
art/attacks/attack.py	92.85% <ø> (ø)
art/attacks/evasion/auto_conjugate_gradient.py	86.52% <ø> (ø)
...attacks/evasion/auto_projected_gradient_descent.py	86.51% <ø> (ø)
art/attacks/evasion/brendel_bethge.py	87.01% <ø> (ø)
...ient_descent/projected_gradient_descent_pytorch.py	93.47% <100.00%> (ø)
art/attacks/evasion/sign_opt.py	86.81% <100.00%> (ø)
...rt/defences/detector/poison/clustering_analyzer.py	94.93% <100.00%> (ø)
art/defences/preprocessor/preprocessor.py	78.63% <100.00%> (ø)
art/defences/trainer/__init__.py	100.00% <100.00%> (ø)
art/defences/trainer/adversarial_trainer_trades.py	100.00% <100.00%> (ø)
... and 27 more

... and 1 file with indirect coverage changes