chore: update xr deprecation message (#11978)

Author: Kamil Sobol

packages/amplify-cli/src/display-banner-messages.ts

@@ -55,10 +55,11 @@ const displayXrDeprecationMessage = async (): Promise<void> => {
     const hasXr = 'xr' in meta;
     if (hasXr) {
       printer.blankLine();
-      printer.warn('Amazon Sumerian is getting deprecated. The XR category depends on Amazon Sumerian to function.' +
-        ' Amazon Sumerian scenes will not be accessible by February 21, 2023.' +
-        ' Follow the documentation on this page https://docs.amplify.aws/lib/xr/getting-started/q/platform/js/' +
-        ' to understand your migration options.');
+      printer.warn(
+        'The Amazon Sumerian service is no longer accepting new customers.' +
+          ' Existing customer scenes will not be available after February 21, 2023.' +
+          ' The AWS Amplify XR features depend on the Amazon Sumerian service to function and as a result, will no longer be available.',
+      );
       printer.blankLine();
     }
   }