Add historical TANF parameter data (pre-2018) for DE, MO, PA, RI, SD

[hua7450]

Summary

Five states have TANF parameter files missing historical data (start dates after 2018). Each state only requires updating 1 file.

Files to Update

State	Program	File	Current Start Date	Related Issue
DE	TANF	de/dhss/tanf/benefit/deficit_rate.yaml	2024-10-01	#6644
MO	TANF	mo/dss/tanf/minimum_payment.yaml	2024-01-01	#6758
PA	TANF	pa/dhs/tanf/income/deductions/work_expense/additional.yaml	2020-09-26	#6876
RI	RI Works	ri/dhs/works/income/dependent_care/amount.yaml	2019-01-01	#6877
SD	TANF	sd/dss/tanf/payment_standard/max_table_size.yaml	2023-07-01	#6974

Task

For each file, research and add historical parameter values going back to at least 2018 (or program inception if later).

Closes

Closes #6644
Closes #6758
Closes #6876
Closes #6877
Closes #6974

References

• Part of broader TANF parameter audit identifying 189 files across 24 states needing historical data