Switch `AlonzoTxAuxData` to use `NativeScript` #19700

Job	Run time
fourmolu	39s
build (9.8.4, ubuntu-latest)	15m 31s
build (9.6.7, ubuntu-latest)	23m 37s
cabal-format	6s
build (9.10.2, ubuntu-latest)	14m 25s
shellcheck	7s
Check that there are no additions of `undefined`s in the PR diff	12s
build (9.12.2, ubuntu-latest)	21m 35s
gen-hie	7m 15s
Check branch history	11s
Check if formal-ledger-specifications SRP is valid	30s
Tests completed	3s
codegen	0s
${{ matrix.package }}-${{ matrix.ghc }}-${{ matrix.os }}	0s
Send a slack notification on \#ledger-internal if the nightly build failed	0s
	1h 24m 11s

Provide feedback