Investigate Marlowe validator compilation failure with GHC 9.6.2

With GHC 9.6.2, this happens in the plutus repository

```
$ cabal test plutus-benchmark-marlowe-tests
...
Test suite plutus-benchmark-marlowe-tests: RUNNING...
plutus-benchmark-marlowe-tests: Error: Reference to a name which is not a local, a builtin, or an external INLINABLE function: Variable PlutusLedgerApi.V1.Value.$fAdditiveGroupValue_go
No unfolding
Context: Compiling definition of: PlutusBenchmark.Marlowe.Scripts.Semantics.mkMarloweValidator
Context: Compiling expr at "plutus-benchmark-0.1.0.0-inplace-marlowe-internal:PlutusBenchmark.Marlowe.Scripts.Semantics:(448,9)-(448,53)"
Test suite plutus-benchmark-marlowe-tests: FAIL
```

The same thing happens with cabal bench marlowe. This doesn’t happen with GHC 9.2.6.

The problem can be fixed by adding

```
{-# OPTIONS_GHC -fexpose-all-unfoldings #-}
```

to PlutusLedgerApi.V1.Value. However, that may not be entirely desirable, so we should try to understand what’s going on and see if there’s any other way to fix it.