Polkadot companion #6603: Use a BoundedVec in ValidationResult (#2161)

* Convert message `Vec`s into `BoundedVec`s

* cargo fmt

* Fix missing conversions in collator

* Fix the fix

* Fix the fix to the fix

* Fix tests

* Fix^4

* Avoid use of unwrap

* update lockfile for {"substrate", "polkadot"}

---------

Co-authored-by: parity-processbot <>

client/network/src/tests.rs

@@ -136,8 +136,8 @@ impl RelayChainInterface for DummyRelayChainInterface {
 					validation_code_hash: ValidationCodeHash::from(PHash::random()),
 				},
 				commitments: CandidateCommitments {
-					upward_messages: Vec::new(),
-					horizontal_messages: Vec::new(),
+					upward_messages: Default::default(),
+					horizontal_messages: Default::default(),
 					new_validation_code: None,
 					head_data: HeadData(Vec::new()),
 					processed_downward_messages: 0,