main
move around examples for better structure.
CLN replace authors with the standard line (#29250)
DOC improve headings in LabelSpreading examples (#30553)
DOC Remove deprecated SVC(probability=True) from examples (#33299)
DOC improved plot_semi_supervised_newsgroups.py example (#31104)
MNT Deprecate `multiclass_colors` in favour of `label_colors` in `DecisionBoundaryDisplay` (#34092)