terraform/environment: increase govulncheck coverage to ~50k projects

Change-Id: I3f702fa117bf7f3b31c06b012c3edcc018d96ac2
Reviewed-on: https://go-review.googlesource.com/c/pkgsite-metrics/+/488155
Reviewed-by: Maceo Thompson <maceothompson@google.com>
Run-TryBot: Zvonimir Pavlinovic <zpavlinovic@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
diff --git a/terraform/environment/worker.tf b/terraform/environment/worker.tf
index 2a79cf2..4c3d6e7 100644
--- a/terraform/environment/worker.tf
+++ b/terraform/environment/worker.tf
@@ -267,7 +267,7 @@
 
   http_target {
     http_method = "GET"
-    uri         = "${local.worker_url}/govulncheck/enqueueall?min=5"
+    uri         = "${local.worker_url}/govulncheck/enqueueall?min=3"
     oidc_token {
       service_account_email = local.worker_service_account
       audience              = local.worker_url