fix: ensure that VPC exists before querying for it GET 2.8 target
Same change as !1170 (merged), targeting GET 2.8.
This ensures that the VPC exists before querying it. Without this Memorystore creation fails when GET creates the VPC.
Required for https://gitlab.com/gitlab-com/gl-infra/gitlab-dedicated/instrumentor/-/merge_requests/2343
Edited by Andrew Newdigate OoO