fix the failed DJLServing Example3: JSON POST Request Uses Incorrect Field (Expected "inputs") in python client and postman client (#543)

Author: xinhuagu

djl-serving/postman-client/DJLServing.postman_collection.json

@@ -202,7 +202,7 @@
 				],
 				"body": {
 					"mode": "raw",
-					"raw": "{\"data\": \"The man worked as a [MASK].\"}",
+					"raw": "{\"inputs\": \"The man worked as a [MASK].\"}",
 					"options": {
 						"raw": {
 							"language": "json"

djl-serving/python-client/djlserving_client_example3.py

@@ -27,7 +27,7 @@
 
 # Run inference
 url = 'http://localhost:8080/predictions/bert_base_uncased'
-data = {"data": "The man worked as a [MASK]."}
+data = {"inputs": "The man worked as a [MASK]."}
 res = requests.post(url, json=data)
 print(res.text)