feat: add timestamp to pool update (#3833)

crates/transaction-pool/src/maintain.rs

@@ -266,6 +266,7 @@ pub async fn maintain_transaction_pool<Client, P, St, Tasks>(
                     changed_accounts,
                     // all transactions mined in the new chain need to be removed from the pool
                     mined_transactions: new_mined_transactions.into_iter().collect(),
+                    timestamp: new_tip.timestamp,
                 };
                 pool.on_canonical_state_change(update);
 
@@ -331,6 +332,7 @@ pub async fn maintain_transaction_pool<Client, P, St, Tasks>(
                     pending_block_base_fee,
                     changed_accounts,
                     mined_transactions,
+                    timestamp: tip.timestamp,
                 };
                 pool.on_canonical_state_change(update);
             }

crates/transaction-pool/src/pool/mod.rs

@@ -257,6 +257,7 @@ where
             pending_block_base_fee,
             changed_accounts,
             mined_transactions,
+            timestamp: _,
         } = update;
         let changed_senders = self.changed_senders(changed_accounts.into_iter());
         let block_info = BlockInfo {

crates/transaction-pool/src/traits.rs

@@ -402,6 +402,8 @@ pub struct CanonicalStateUpdate {
     pub changed_accounts: Vec<ChangedAccount>,
     /// All mined transactions in the block range.
     pub mined_transactions: Vec<H256>,
+    /// Timestamp of the latest chain update
+    pub timestamp: u64,
 }
 
 impl fmt::Display for CanonicalStateUpdate {