Enable Cuddle validation tests once validation has been optimized

[Soupstraw]

There's currently a WIP pull request in the cuddle repo that aims to make map validation faster. We should enable Cuddle validation tests for PParams and PParamsUpdate once that optimization has been merged.

https://github.com/IntersectMBO/cardano-ledger/blob/master/eras/conway/impl/test/Test/Cardano/Ledger/Conway/Binary/CddlSpec.hs#L121-L123