terraform/environment: set min imported to 2 for govulncheck enqueueall

This change is part of a series of CLs that gradually increase the
coverage of govulncheck, hopefully covering the whole Go ecosystem.

Change-Id: Ide143bc95f9681e0aa483b76243d857f3fb04ec6
Reviewed-on: https://go-review.googlesource.com/c/pkgsite-metrics/+/494075
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Jonathan Amsterdam <jba@google.com>
Run-TryBot: Zvonimir Pavlinovic <zpavlinovic@google.com>

terraform/environment/worker.tf

diff --git a/terraform/environment/worker.tf b/terraform/environment/worker.tf
index 6708f4c..34d4ae5 100644
--- a/terraform/environment/worker.tf
+++ b/terraform/environment/worker.tf
@@ -285,7 +285,7 @@
 
   http_target {
     http_method = "GET"
-    uri         = "${local.worker_url}/govulncheck/enqueueall?min=3"
+    uri         = "${local.worker_url}/govulncheck/enqueueall?min=2"
     oidc_token {
       service_account_email = local.worker_service_account
       audience              = local.worker_url