Gas price pending TX test using wrong class (#6152)

Signed-off-by: Matthew Whitehead <matthew1001@gmail.com>

ethereum/eth/src/test/java/org/hyperledger/besu/ethereum/eth/transactions/sorter/GasPricePendingTransactionsTest.java

@@ -26,7 +26,7 @@ public class GasPricePendingTransactionsTest extends AbstractPendingTransactions
   @Override
   AbstractPendingTransactionsSorter getPendingTransactions(
       final TransactionPoolConfiguration poolConfig, final Optional<Clock> clock) {
-    return new BaseFeePendingTransactionsSorter(
+    return new GasPricePendingTransactionsSorter(
         poolConfig,
         clock.orElse(TestClock.system(ZoneId.systemDefault())),
         metricsSystem,