Change the type of `psDeposits` to `CompactForm Coin` #18960

Job	Run time
fourmolu	3s
build (9.10.2, ubuntu-latest)	3s
build (9.8.4, ubuntu-latest)	4s
Check branch history	4s
shellcheck	3s
build (9.6.7, ubuntu-latest)	2s
gen-hie	5s
build (9.12.2, ubuntu-latest)	5s
Check if formal-ledger-specifications SRP is valid	3s
cabal-format	2s
codegen	1s
Tests completed	4s
${{ matrix.package }}-${{ matrix.ghc }}-${{ matrix.os }}	1s
Send a slack notification on \#ledger-internal if the nightly build failed	1s
	41s

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