feat(region-info): added AppMesh ECR account for af-south-1 region (aws#12814)

AppMesh is launched in `af-south-1` region and has a separate account for storing Envoy images in ECR.
Added the ECR account information.

----

*By submitting this pull request, I confirm that my contribution is made under the terms of the Apache-2.0 license*

Author: JayntiRaj

.gitallowed

@@ -22,3 +22,4 @@ account: '772975370895'
 account: '856666278305'
 account: '840364872350'
 account: '422531588944'
+account: '924023996002'

packages/@aws-cdk-containers/ecs-service-extensions/lib/extensions/appmesh.ts

@@ -165,6 +165,7 @@ export class AppMeshExtension extends ServiceExtension {
 
         'me-south-1': this.accountIdForRegion('me-south-1'),
         'ap-east-1': this.accountIdForRegion('ap-east-1'),
+        'af-south-1': this.accountIdForRegion('af-south-1'),
       },
     });
 

packages/@aws-cdk-containers/ecs-service-extensions/test/integ.all-service-addons.expected.json

@@ -3354,6 +3354,9 @@
       },
       "ap-east-1": {
         "ecrRepo": "856666278305"
+      },
+      "af-south-1": {
+        "ecrRepo": "924023996002"
       }
     },
     "greetingenvoyimageaccountmapping": {
@@ -3413,6 +3416,9 @@
       },
       "ap-east-1": {
         "ecrRepo": "856666278305"
+      },
+      "af-south-1": {
+        "ecrRepo": "924023996002"
       }
     },
     "greeterenvoyimageaccountmapping": {
@@ -3472,6 +3478,9 @@
       },
       "ap-east-1": {
         "ecrRepo": "856666278305"
+      },
+      "af-south-1": {
+        "ecrRepo": "924023996002"
       }
     }
   },

packages/@aws-cdk-containers/ecs-service-extensions/test/integ.multiple-environments.expected.json

@@ -2173,6 +2173,9 @@
       },
       "ap-east-1": {
         "ecrRepo": "856666278305"
+      },
+      "af-south-1": {
+        "ecrRepo": "924023996002"
       }
     },
     "namedevelopmentenvoyimageaccountmapping": {
@@ -2232,6 +2235,9 @@
       },
       "ap-east-1": {
         "ecrRepo": "856666278305"
+      },
+      "af-south-1": {
+        "ecrRepo": "924023996002"
       }
     }
   }

packages/@aws-cdk/region-info/build-tools/fact-tables.ts

@@ -158,5 +158,6 @@ export const APPMESH_ECR_ACCOUNTS: { [region: string]: string } = {
 
   'me-south-1': '772975370895',
   'ap-east-1': '856666278305',
+  'af-south-1': '924023996002',
 
 };