change: add kix to launched regions (aws#4571)

Author: haixiw

src/sagemaker/jumpstart/constants.py

@@ -104,6 +104,11 @@
             content_bucket="jumpstart-cache-prod-ap-northeast-2",
             gated_content_bucket="jumpstart-private-cache-prod-ap-northeast-2",
         ),
+        JumpStartLaunchedRegionInfo(
+            region_name="ap-northeast-3",
+            content_bucket="jumpstart-cache-prod-ap-northeast-3",
+            gated_content_bucket="jumpstart-private-cache-prod-ap-northeast-3",
+        ),
         JumpStartLaunchedRegionInfo(
             region_name="eu-west-2",
             content_bucket="jumpstart-cache-prod-eu-west-2",