fix (aggregator): clone tx opts to avoid increasing gas limit every tx (#314)

Co-authored-by: Mauro Toscano <[email protected]>

Author: taturosati

core/chainio/avs_writer.go

@@ -86,9 +86,9 @@ func (w *AvsWriter) SendTask(context context.Context, batchMerkleRoot [32]byte,
 }
 
 func (w *AvsWriter) SendAggregatedResponse(ctx context.Context, batchMerkleRoot [32]byte, nonSignerStakesAndSignature servicemanager.IBLSSignatureCheckerNonSignerStakesAndSignature) (*gethtypes.Receipt, error) {
-	txOpts := w.Signer.GetTxOpts()
+	txOpts := *w.Signer.GetTxOpts()
 	txOpts.NoSend = true // simulate the transaction
-	tx, err := w.AvsContractBindings.ServiceManager.RespondToTask(txOpts, batchMerkleRoot, nonSignerStakesAndSignature)
+	tx, err := w.AvsContractBindings.ServiceManager.RespondToTask(&txOpts, batchMerkleRoot, nonSignerStakesAndSignature)
 	if err != nil {
 		w.logger.Error("Error submitting SubmitTaskResponse tx while calling respondToTask", "err", err)
 		return nil, err
@@ -97,7 +97,7 @@ func (w *AvsWriter) SendAggregatedResponse(ctx context.Context, batchMerkleRoot
 	// Send the transaction
 	txOpts.NoSend = false
 	txOpts.GasLimit = tx.Gas() * 110 / 100 // Add 10% to the gas limit
-	tx, err = w.AvsContractBindings.ServiceManager.RespondToTask(txOpts, batchMerkleRoot, nonSignerStakesAndSignature)
+	tx, err = w.AvsContractBindings.ServiceManager.RespondToTask(&txOpts, batchMerkleRoot, nonSignerStakesAndSignature)
 	if err != nil {
 		w.logger.Error("Error submitting SubmitTaskResponse tx while calling respondToTask", "err", err)
 		return nil, err