fix: use eth maintained tx-fuzz (#110)

src/transaction_spammer/transaction_spammer.star

@@ -1,4 +1,4 @@
-IMAGE_NAME = "kurtosistech/tx-fuzz:0.2.0"
+IMAGE_NAME = "ethpandaops/tx-fuzz:latest"
 SERVICE_NAME = "transaction-spammer"
 
 def launch_transaction_spammer(plan, prefunded_addresses, el_client_context):
@@ -10,19 +10,12 @@ def get_config(prefunded_addresses, el_client_context):
 	private_keys_strs = []
 	address_strs = []
 
-	for prefunded_address in prefunded_addresses:
-		private_keys_strs.append(prefunded_address.private_key)
-		address_strs.append(prefunded_address.address)
-
-	comma_separated_private_keys = ",".join(private_keys_strs)
-	comma_separated_addresses = ",".join(address_strs)
 	return ServiceConfig(
 		image = IMAGE_NAME,
 		cmd = [
-			"http://{0}:{1}".format(el_client_context.ip_addr, el_client_context.rpc_port_num),
 			"spam",
-			comma_separated_private_keys,
-			comma_separated_addresses
+			"--rpc=http://{0}:{1}".format(el_client_context.ip_addr, el_client_context.rpc_port_num),
+			"--sk={0}".format(prefunded_addresses[0].private_key),
 		]
 	)