Update to use pandas v2.* #860

Job	Run time
linux-64-py3.10	10m 52s
macOS	6m 21s
win-64	14m 19s
Standard 2-Zone Example (SANDAG)	1h 7m 52s
random_seed_generation_test	4m 43s
prototype_mtc	51m 15s
prototype_sandag_xborder	6m 27s
Standard 1-Zone Example (MTC)	56m 16s
prototype_marin	3m 24s
placeholder_sandag	2h 16m 15s
placeholder_psrc	43m 0s
production_semcog	7m 12s
prototype_mtc_extended	1h 31m 44s
placeholder_multiple_zone	9m 55s
prototype_mwcog	51m 44s
Estimation Mode Unit Tests	18m 11s
develop-docbuild	-1s
	9h 39m 29s

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