Updated endpoints.json.

Author: AWS

.changes/next-release/feature-AWSSDKforJavav2-e97801d.json

@@ -0,0 +1,5 @@
+{
+    "type": "feature",
+    "category": "AWS SDK for Java v2",
+    "description": "Updated service endpoint metadata."
+}

core/regions/src/main/resources/software/amazon/awssdk/regions/internal/region/endpoints.json

@@ -4129,6 +4129,16 @@
           "cn-northwest-1" : { }
         }
       },
+      "appsync" : {
+        "endpoints" : {
+          "cn-north-1" : { }
+        }
+      },
+      "athena" : {
+        "endpoints" : {
+          "cn-northwest-1" : { }
+        }
+      },
       "autoscaling" : {
         "defaults" : {
           "protocols" : [ "http", "https" ]