Update SUA tests for FY2019 backfill values

Test 2 (2021, CA): Jan-Sep now uses FY2019 value (415) instead of 0
Test 3 (2020, CA): Now uses FY2019 value (415*12=4980) instead of 0

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

Author: MaxGhenis

policyengine_us/tests/policy/baseline/gov/usda/snap/income/deductions/snap_standard_utility_allowance.yaml

@@ -24,7 +24,7 @@
     trash_expense: 400
     sewage_expense: 1
   output:
-    snap_standard_utility_allowance: 1_461 # 487*3 
+    snap_standard_utility_allowance: 5_196 # 415*9 (FY19) + 487*3 (FY22)
 
 - name: Standard Utility Allowance 3
   period: 2020
@@ -38,7 +38,7 @@
     trash_expense: 400
     sewage_expense: 1
   output:
-    snap_standard_utility_allowance: 0
+    snap_standard_utility_allowance: 4_980 # 415*12 (FY19 value for CA)
 
 - name: Standard Utility Allowance NC 1 member
   period: 2025