Ready for 4.2.1 release #2641

Job	Run time
check-linting (3.13)	40s
check-linting (3.11)	37s
Unit Tests + PyArrow (Python 3.9, default deps)	58s
check-linting (3.10)	27s
Unit Tests + PyArrow (Python 3.11, min deps)	1m 15s
Unit Tests + PyArrow (Python 3.11, default deps)	54s
Unit Tests + PyArrow (Python 3.13, default deps)	56s
Unit Tests (Python 3.10, default deps)	42s
check-linting (3.9)	39s
check-linting (3.12)	42s
Unit Tests (Python 3.9, min deps)	58s
Unit Tests + PyArrow (Python 3.10, default deps)	58s
Unit Tests + PyArrow (Python 3.10, min deps)	1m 14s
Unit Tests (Python 3.11, min deps)	54s
Unit Tests (Python 3.10, min deps)	1m 2s
Unit Tests (Python 3.12, default deps)	40s
Unit Tests (Python 3.11, default deps)	44s
Unit Tests + PyArrow (Python 3.12, default deps)	1m 5s
check-types (3.9)	51s
Unit Tests (Python 3.13, default deps)	43s
check-types (3.11)	45s
Unit Tests + PyArrow (Python 3.9, min deps)	1m 11s
check-types (3.12)	42s
Unit Tests (Python 3.9, default deps)	1m 0s
check-types (3.10)	39s
check-types (3.13)	42s
	21m 58s

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