Fix unit test hitting example.com

This isn't a long term fix, but it should unblock PRs for now.
example.com/anything is returning 500 now, not 404.

api/krusty/accumulation_test.go

@@ -228,7 +228,7 @@ resources:
 			// resource to not indicate the resource's status as a
 			// local directory. Though it is possible for a remote file-like
 			// resource to be a local directory, it is very unlikely.
-			errFile: `HTTP Error: status code 404 \(Not Found\)\z`,
+			errFile: `HTTP Error: status code 500 \(Internal Server Error\)\z`,
 		},
 		{
 			name:     "remote file qualifies as repo",