fix(vpc): review doc (scaleway#3861)

Author: RoRoJ

network/vpc/how-to/attach-resources-to-pn.mdx

@@ -7,7 +7,7 @@ content:
   paragraph: This page explains how to attach resources to a Private Network in a Scaleway VPC
 tags: regional-private-network private-network vpc virtual-private-cloud attach detach resources regional
 dates:
-  validation: 2024-04-02
+  validation: 2024-10-21
   posted: 2023-03-21
 categories:
   - network