Set challenge attribution

Author: fuyu0425

ctfcli/core/challenge.py

@@ -43,7 +43,7 @@ def str_presenter(dumper, data):
 class Challenge(dict):
     key_order = [
         # fmt: off
-        "name", "author", "category", "description", "value",
+        "name", "author", "category", "description", "attribution", "value",
         "type", "extra", "image", "protocol", "host",
         "connection_info", "healthcheck", "attempts", "flags",
         "files", "topics", "tags", "files", "hints",
@@ -262,6 +262,7 @@ def _get_initial_challenge_payload(self, ignore: Tuple[str] = ()) -> Dict:
             "name": self["name"],
             "category": self.get("category", ""),
             "description": self.get("description", ""),
+            "attribution": self.get("attribution", ""),
             "type": self.get("type", "standard"),
             # Hide the challenge for the duration of the sync / creation
             "state": "hidden",