v4.2.0
[SPARK-56011][PYTHON][INFRA] Add python/asv wrapper script for running benchmarks from repo root
[SPARK-55369][SPARK-55332][PYTHON][INFRA] Setup ASV benchmark
[SPARK-58024][PYTHON] Convert Arrow struct and map columns to Python rows in bulk
[SPARK-57138][PYTHON][TEST] Share base mixin across Window and Cogroup Arrow/Pandas siblings