feat: Replace hardcoded cloudfront canonical user ID in example (#96)

Author: jinleileiking

examples/complete/main.tf

@@ -177,6 +177,7 @@ module "acm" {
 #############
 
 data "aws_canonical_user_id" "current" {}
+data "aws_cloudfront_log_delivery_canonical_user_id" "cloudfront" {}
 
 module "s3_one" {
   source  = "terraform-aws-modules/s3-bucket/aws"
@@ -199,7 +200,7 @@ module "log_bucket" {
     }, {
     type       = "CanonicalUser"
     permission = "FULL_CONTROL"
-    id         = "c4c1ede66af53448b93c283ce9448c4ba468c9432aa01d700d3878632f77d2d0"
+    id         = data.aws_cloudfront_log_delivery_canonical_user_id.cloudfront.id
     # Ref. https://github.com/terraform-providers/terraform-provider-aws/issues/12512
     # Ref. https://docs.aws.amazon.com/AmazonCloudFront/latest/DeveloperGuide/AccessLogs.html
   }]