chore: Address mismatched_lifetime_syntaxes warnings (#8923)

cost-model/benches/cost_tracker.rs

@@ -45,7 +45,7 @@ fn setup(num_transactions: usize, contentious_transactions: bool) -> BenchSetup
 
 fn get_costs(
     transactions: &[WritableKeysTransaction],
-) -> Vec<TransactionCost<WritableKeysTransaction>> {
+) -> Vec<TransactionCost<'_, WritableKeysTransaction>> {
     transactions
         .iter()
         .map(|transaction| {

ledger-tool/src/program.rs

@@ -253,7 +253,7 @@ impl<'a, 'b> LazyAnalysis<'a, 'b> {
         }
     }
 
-    fn analyze(&mut self) -> &Analysis {
+    fn analyze(&mut self) -> &Analysis<'_> {
         if let Some(ref analysis) = self.analysis {
             return analysis;
         }