refactor: update type hints

[josafatburmeister]

No description provided.

[github-actions]

The documentation for this pull request was deployed at https://ai4trees.github.io/pointtree/pr152.

[codecov]

Codecov Report

❌ Patch coverage is 89.47368% with 2 lines in your changes missing coverage. Please review.

Files with missing lines	Patch %	Lines
src/pointtree/visualization/_color_point_cloud.py	0.00%	2 Missing ⚠️

Files with missing lines	Coverage Δ
src/pointtree/evaluation/_match_instances.py	100.00% <ø> (ø)
...instance_segmentation/_coarse_to_fine_algorithm.py	97.52% <100.00%> (-0.01%)	⬇️
...inttree/instance_segmentation/_tree_x_algorithm.py	99.81% <100.00%> (ø)
...inttree/operations/_statistical_outlier_removal.py	100.00% <100.00%> (ø)
src/pointtree/visualization/_plot_fitted_shape.py	100.00% <100.00%> (ø)
src/pointtree/visualization/_color_point_cloud.py	25.00% <0.00%> (ø)

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