feat: add USDPLUS support (#228) #491

Job	Run time
Run linters / lint-format-typecheck (pragma-utils)	38s
Build & Integration Tests / tests (pragma-utils)	11m 25s
Run linters / lint-format-typecheck (pragma-sdk)	36s
Build & Integration Tests / tests (pragma-sdk)	14m 11s
Run linters / lint-format-typecheck (price-pusher)	38s
Build & Integration Tests / tests (price-pusher)	12m 6s
Run linters / lint-format-typecheck (vrf-listener)	1m 7s
Build & Integration Tests / tests (vrf-listener)	14m 37s
Run linters / lint-format-typecheck (checkpointer)	47s
Build & Integration Tests / tests (checkpointer)	12m 16s
Run linters / lint-format-typecheck (merkle-maker)	51s
Build & Integration Tests / tests (merkle-maker)	11m 31s
Run linters / lint-format-typecheck (lp-pricer)	1m 3s
Build & Integration Tests / tests (lp-pricer)	11m 28s
	1h 33m 14s

Provide feedback