Add comprehensive SNAP utility allowance data (FY2019-FY2026, sub-regions, household size) #20842

Job	Run time
Check changelog fragment	7s
Full Suite - Structural (Other)	5m 22s
Quick Feedback (Selective Tests + Coverage)	3m 3s
Full Suite - Structural (States)	5m 22s
Full Suite - Baseline States	5m 22s
Full Suite - Baseline (excl States) & Reform & Python	5m 22s
Lint	19s
	24m 57s

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