always initialize balances cache if necessary in electra upgrade

consensus/state_processing/src/upgrade/electra.rs

@@ -22,6 +22,9 @@ pub fn upgrade_to_electra<E: EthSpec>(
         .unwrap_or(epoch)
         .safe_add(1)?;
 
+    // The total active balance cache must be built before the consolidation churn limit
+    // is calculated.
+    pre_state.build_total_active_balance_cache(spec)?;
     let consolidation_balance_to_consume = pre_state.get_consolidation_churn_limit(spec)?;
     let earliest_consolidation_epoch = spec.compute_activation_exit_epoch(epoch)?;