chore(e2e): Fix bucket lifecycle warning (#5912)

The provider was returning the following warning, which will become an error in future versions of the provider.

No attribute specified when one (and only one) of [rule[0].filter,rules[0].prefix] is required

enos/modules/aws_bucket/main.tf

@@ -25,6 +25,7 @@ resource "aws_s3_bucket_lifecycle_configuration" "example" {
       days = 7
     }
     status = "Enabled"
+    filter {}
   }
 }