added pandas < 2.4.0 support and tests for py 3.14 #2708

Job	Run time
check-linting (3.14)	8m 12s
check-linting (3.12)	35s
check-linting (3.9)	40s
check-linting (3.13)	35s
check-linting (3.10)	41s
check-types (3.12)	49s
check-types (3.13)	45s
check-linting (3.11)	41s
check-types (3.14)	8m 34s
check-types (3.9)	49s
Unit Tests (Python 3.9, min deps)	3m 13s
check-types (3.10)	44s
check-types (3.11)	45s
Unit Tests (Python 3.9, default deps)	2m 54s
Unit Tests (Python 3.10, min deps)	3m 13s
Unit Tests (Python 3.12, default deps)	2m 50s
Unit Tests (Python 3.11, min deps)	3m 8s
Unit Tests (Python 3.14, default deps)	7m 56s
Unit Tests (Python 3.10, default deps)	2m 55s
Unit Tests (Python 3.11, default deps)	2m 55s
Unit Tests + PyArrow (Python 3.10, min deps)	3m 24s
Unit Tests (Python 3.14, min deps)	8m 1s
Unit Tests (Python 3.13, default deps)	2m 54s
Unit Tests + PyArrow (Python 3.9, default deps)	3m 7s
Unit Tests + PyArrow (Python 3.11, default deps)	3m 0s
Unit Tests + PyArrow (Python 3.10, default deps)	3m 7s
Unit Tests + PyArrow (Python 3.9, min deps)	3m 25s
Unit Tests + PyArrow (Python 3.12, default deps)	3m 4s
Unit Tests + PyArrow (Python 3.11, min deps)	3m 25s
Unit Tests + PyArrow (Python 3.14, default deps)	7m 55s
Unit Tests + PyArrow (Python 3.14, min deps)	7m 53s
Unit Tests + PyArrow (Python 3.13, default deps)	3m 3s
	1h 45m 12s

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