Fix CustomOperation schema

Custom operation in data field receives hex in string not array of strings.

Connected with:

• hive!1263 (merged)
• helpy!42 (merged)
• test-tools!205 (merged)
• !88 (merged)

schemas/operations/custom_operation.py

@@ -3,6 +3,7 @@ from __future__ import annotations
 from pydantic import Field
 
 from schemas.fields.basic import AccountName
+from schemas.fields.hex import Hex
 from schemas.fields.integers import Uint16t
 from schemas.operation import Operation
 
@@ -13,4 +14,4 @@ class CustomOperation(Operation):
 
     required_auths: list[AccountName]
     id_: Uint16t = Field(alias="id")
-    data: list[str]
+    data: Hex