1.4.0-1
move around examples for better structure.
MNT add isort to ruff's rules (#26649)
MAINT Update fetch_openml to use the auto parser by default (#27802)
DOC add cross-reference to examples instead of duplicating content for GPR (#20003)
MNT Update black to stable version (#22474)
DOC fix title underline too short in Gaussian Process kernel (#24726)