core/txpool: use priceList.Put instead of heap.Push (#26863)

Minor refactor to use the 'intended' accessor

core/txpool/txpool.go

@@ -17,7 +17,6 @@
 package txpool
 
 import (
-	"container/heap"
 	"errors"
 	"fmt"
 	"math"
@@ -750,7 +749,7 @@ func (pool *TxPool) add(tx *types.Transaction, local bool) (replaced bool, err e
 			// Add all transactions back to the priced queue
 			if replacesPending {
 				for _, dropTx := range drop {
-					heap.Push(&pool.priced.urgent, dropTx)
+					pool.priced.Put(dropTx, false)
 				}
 				log.Trace("Discarding future transaction replacing pending tx", "hash", hash)
 				return false, ErrFutureReplacePending