Bump pillow from 11.3.0 to 12.1.1 #1144

Job	Run time
linux-64-py	6m 45s
Estimation Mode Unit Tests	26m 13s
Standard 2-Zone Example (SANDAG)	1h 33m 35s
random_seed_generation_test	3m 3s
Standard 1-Zone Example (MTC)	54m 49s
win-64	11m 49s
Estimation Notebooks Test	52m 28s
estimation_edb_creation_test	7m 2s
Expression Profiling Tests	7m 53s
macOS	7m 11s
prototype_mtc_extended	1h 28m 31s
prototype_marin	1m 40s
prototype_sandag_xborder	6m 15s
placeholder_psrc	52m 47s
production_semcog	6m 41s
prototype_mwcog	57m 59s
placeholder_multiple_zone	10m 3s
prototype_mtc	57m 58s
develop-docbuild	0s
	9h 12m 42s

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