update field in TaskProof

baseapi/base/v1/odysseus.proto

@@ -57,11 +57,11 @@ message TaskProof {
     uint64 task_finish_timestamp = 2;
     uint64 task_type = 3;
     uint64 task_workload = 4;
-    bytes task_req_hash = 5;
-    bytes task_resp_hash = 6;
-    bytes task_manager_signature = 7;
-    bytes task_container_signature = 8;
-    bytes task_miner_signature = 9;
+    string task_req_hash = 5;
+    string task_resp_hash = 6;
+    string task_manager_signature = 7;
+    string task_container_signature = 8;
+    string task_miner_signature = 9;
     string task_profit_account = 10;
     string task_worker_account = 11;
 }