Change endpoint format for Jakarta region

Change to working endpoint, tested OK locally

src/internal/s3-endpoints.ts

@@ -30,11 +30,11 @@ const awsS3Endpoint = {
   'ap-south-1': 's3-ap-south-1.amazonaws.com',
   'ap-southeast-1': 's3-ap-southeast-1.amazonaws.com',
   'ap-southeast-2': 's3-ap-southeast-2.amazonaws.com',
-  'ap-southeast-3': 's3-ap-southeast-3.amazonaws.com',
   'ap-northeast-1': 's3-ap-northeast-1.amazonaws.com',
   'cn-north-1': 's3.cn-north-1.amazonaws.com.cn',
   'ap-east-1': 's3.ap-east-1.amazonaws.com',
   'eu-north-1': 's3.eu-north-1.amazonaws.com',
+  'ap-southeast-3': 's3.ap-southeast-3.amazonaws.com',
   // Add new endpoints here.
 }