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

@@ -2723,6 +2723,7 @@
       },
       "polly" : {
         "endpoints" : {
+          "ap-east-1" : { },
           "ap-northeast-1" : { },
           "ap-northeast-2" : { },
           "ap-south-1" : { },
@@ -2734,6 +2735,7 @@
           "eu-west-1" : { },
           "eu-west-2" : { },
           "eu-west-3" : { },
+          "me-south-1" : { },
           "sa-east-1" : { },
           "us-east-1" : { },
           "us-east-2" : { },
@@ -4401,6 +4403,16 @@
           "cn-northwest-1" : { }
         }
       },
+      "neptune" : {
+        "endpoints" : {
+          "cn-northwest-1" : {
+            "credentialScope" : {
+              "region" : "cn-northwest-1"
+            },
+            "hostname" : "rds.cn-northwest-1.amazonaws.com.cn"
+          }
+        }
+      },
       "polly" : {
         "endpoints" : {
           "cn-northwest-1" : { }