kusano/vulnerable: fix module name

Change-Id: I35f269926259a1d263f4fd3abe3dbd0a0fe59eb3
Reviewed-on: https://go-review.googlesource.com/c/scratch/+/706495
Reviewed-by: Markus Kusano <kusano@google.com>
TryBot-Bypass: Markus Kusano <kusano@google.com>

kusano/vulnerable/go.mod

diff --git a/kusano/vulnerable/go.mod b/kusano/vulnerable/go.mod
index 757833c..c65b5fe 100644
--- a/kusano/vulnerable/go.mod
+++ b/kusano/vulnerable/go.mod
@@ -1,4 +1,4 @@
-module golang.org/vulnerable
+module golang.org/x/scratch/kusano/vulnerable
 
 go 1.18