Update CloudFront test resource name (#4925)

Make it clear that the resource is not to be deleted.

Author: dagnir

services/cloudfront/src/test/java/software/amazon/awssdk/services/cloudfront/CloudFrontUtilitiesIntegrationTest.java

@@ -74,7 +74,7 @@
 
 public class CloudFrontUtilitiesIntegrationTest extends IntegrationTestBase {
     private static final Base64.Encoder ENCODER = Base64.getEncoder();
-    private static final String RESOURCE_PREFIX = "cf-test-";
+    private static final String RESOURCE_PREFIX = "do-not-delete-cf-test-";
     private static final String CALLER_REFERENCE = UUID.randomUUID().toString();
     private static final String S3_OBJECT_KEY = "s3ObjectKey";