fix: correct V1 to_plutus_data() for txout with no datum hash

CHANGELOG.md

@@ -21,6 +21,7 @@
 ### Changed
 
 - **aiken**: `check` now also runs and reports on any `test` found in the project
+- **aiken**: fix Plutus V1 `to_plutus_data()` for post-alonzo txout with no datum hash
 
 ### Removed
 

crates/uplc/src/tx/to_plutus_data.rs

@@ -296,7 +296,7 @@ impl ToPlutusData for TxOut {
                         post_alonzo_output.value.to_plutus_data(),
                         match post_alonzo_output.datum_option {
                             Some(DatumOption::Hash(hash)) => Some(hash).to_plutus_data(),
-                            _ => None::<DatumOption>.to_plutus_data(),
+                            _ => None::<Option<Hash<32>>>.to_plutus_data(),
                         },
                     ],
                 ),