Revisit Peru holidays in full and bring it up to modern implemented standard #2739
Description
While Peru holidays list itself should be more or less up-to-date thanks to PR #2730, its current implementation is very barebone compared to other updated entries like Argentina's and Brazil's i.e. there's no start_year parameter yet or historical implementations, or that its test cases coverage could use some improvements i.e. #2720 or #2737
( Issue initially raised by @KJhellico )
Usable Sources:
- https://www.peruweek.pe/antecedentes-de-los-feriados-en-el-peru/
- Ley N° 10908 (There's the earlier Ley N° 3010 as well but I can't find the specific list of "Civic Holidays" (Fiesta Cívica) mentioned)
- https://busquedas.elperuano.pe/ (AFAIK this archive only got law listing in full from Jan 1996 onwards, need alternative source for older ones)
- https://lpderecho.pe/ (we already use this source for our 2 new holidays from 2023)