Updating regional account ids for af-south-1 and eu-south-1 (#1870)

Adding Debugger Repo Account IDs for `af-south-1` (Cape Town) and `eu-south-1` (Milan)

Author: jigsaw004

tests/unit/sagemaker/image_uris/test_debugger.py

@@ -16,6 +16,7 @@
 from tests.unit.sagemaker.image_uris import expected_uris, regions
 
 ACCOUNTS = {
+    "af-south-1": "314341159256",
     "ap-east-1": "199566480951",
     "ap-northeast-1": "430734990657",
     "ap-northeast-2": "578805364391",
@@ -27,6 +28,7 @@
     "cn-northwest-1": "658757709296",
     "eu-central-1": "482524230118",
     "eu-north-1": "314864569078",
+    "eu-south-1": "563282790590",
     "eu-west-1": "929884845733",
     "eu-west-2": "250201462417",
     "eu-west-3": "447278800020",