Bump urllib3 from 2.5.0 to 2.6.3 #1159

Job	Run time
linux-64-py	5m 48s
Estimation Mode Unit Tests	25m 24s
macOS	9m 34s
estimation_edb_creation_test	7m 27s
prototype_mtc	54m 16s
placeholder_multiple_zone	11m 39s
random_seed_generation_test	3m 16s
prototype_mwcog	1h 0m 49s
win-64	11m 53s
prototype_sandag_xborder	5m 56s
Standard 2-Zone Example (SANDAG)	1h 34m 27s
placeholder_psrc	57m 3s
prototype_marin	1m 46s
production_semcog	7m 14s
Expression Profiling Tests	8m 12s
Standard 1-Zone Example (MTC)	49m 45s
prototype_mtc_extended	1h 29m 53s
Estimation Notebooks Test	51m 45s
develop-docbuild	0s
	9h 16m 7s

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