Use validate-docker-images workflow from test-infra (pytorch#143081)

After PR: pytorch/test-infra#6029 use validate-docker-images.yml from test-infra.
Related to: pytorch/builder#2054

Pull Request resolved: pytorch#143081
Approved by: https://github.com/huydhn

.github/workflows/docker-release.yml

@@ -165,7 +165,7 @@ jobs:
 
   validate:
     needs: build
-    uses: pytorch/builder/.github/workflows/validate-docker-images.yml@main
+    uses: pytorch/test-infra/.github/workflows/validate-docker-images.yml@main
     with:
       channel: nightly
       ref: main