Ready for 4.2.1 release #2640

Job	Run time
Unit Tests (Python 3.9, default deps)	57s
Unit Tests (Python 3.11, default deps)	59s
Unit Tests (Python 3.10, default deps)	47s
Unit Tests (Python 3.9, min deps)	53s
Unit Tests (Python 3.10, min deps)	59s
Unit Tests (Python 3.12, default deps)	40s
Unit Tests + PyArrow (Python 3.9, default deps)	58s
Unit Tests + PyArrow (Python 3.10, min deps)	1m 15s
Unit Tests (Python 3.13, default deps)	46s
Unit Tests (Python 3.11, min deps)	56s
Unit Tests + PyArrow (Python 3.10, default deps)	1m 2s
Unit Tests + PyArrow (Python 3.11, default deps)	56s
check-types (3.10)	38s
Unit Tests + PyArrow (Python 3.12, default deps)	1m 37s
check-types (3.9)	45s
check-types (3.12)	39s
Unit Tests + PyArrow (Python 3.9, min deps)	1m 44s
Unit Tests + PyArrow (Python 3.11, min deps)	1m 10s
check-types (3.11)	57s
check-linting (3.13)	43s
Unit Tests + PyArrow (Python 3.13, default deps)	1m 1s
check-linting (3.11)	40s
check-types (3.13)	44s
check-linting (3.12)	36s
check-linting (3.10)	31s
check-linting (3.9)	46s
	23m 39s

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