fix: return error when error happens

Signed-off-by: Smuu <[email protected]>

test/e2e/testnet/testnet.go

@@ -60,7 +60,7 @@ func (nt *NodeTestnet) CreateBridgeNodes(ctx context.Context, count int, version
 	for i := 0; i < count; i++ {
 		err := nt.CreateBridgeNode(ctx, version, chainID, genesisHash, coreIP, bootstrapper, archival, resources)
 		if err != nil {
-			return nil
+			return err
 		}
 	}
 	return nil