Extract t8n arguments from daemon query string

Author: SamWilsn

src/ethereum_spec_tools/evm_tools/daemon.py

@@ -12,6 +12,7 @@
 from socket import socket
 from threading import Thread
 from typing import Any, Tuple, Union
+from urllib.parse import parse_qs, urlparse
 
 
 def daemon_arguments(subparsers: argparse._SubParsersAction) -> None:
@@ -58,6 +59,16 @@ def do_POST(self) -> None:
             f"--state.reward={content['state']['reward']}",
         ]
 
+        query_string = urlparse(self.path).query
+        if query_string:
+            query = parse_qs(
+                query_string,
+                keep_blank_values=True,
+                strict_parsing=True,
+                errors="strict",
+            )
+            args += query.get("arg", [])
+
         self.send_response(200)
         self.send_header("Content-type", "application/octet-stream")
         self.end_headers()