env/windows: correct typo in network selection

Fix typo: --network=vcp should be --network=vpc in build.bash.

Updates golang/go#35006.

Change-Id: I570fbcbc3f14a43ef2eda0a47f665f7df55ae9ab
Reviewed-on: https://go-review.googlesource.com/c/build/+/406856
Reviewed-by: Carlos Amedee <carlos@golang.org>
Reviewed-by: Alex Rakoczy <alex@golang.org>
diff --git a/env/windows/build.bash b/env/windows/build.bash
index c0aed31..4085180 100755
--- a/env/windows/build.bash
+++ b/env/windows/build.bash
@@ -70,7 +70,7 @@
 gcloud compute instances create --machine-type="$MACHINE_TYPE" "$INSTANCE_NAME" \
         --image "$BASE_IMAGE" --image-project "$IMAGE_PROJECT" \
         --project="$PROJECT_ID" --zone="$ZONE" \
-        --network=default-vcp \
+        --network=default-vpc \
         --metadata="buildlet-binary-url=https://storage.googleapis.com/go-builder-data/buildlet.windows-amd64" \
         --metadata-from-file=windows-startup-script-ps1=startup.ps1