terraform/environment: increase number of queues to 7

Change-Id: I8638458a73e1abce042e0b150d630e68f7446990
Reviewed-on: https://go-review.googlesource.com/c/pkgsite-metrics/+/708395
Reviewed-by: Markus Kusano <kusano@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Auto-Submit: Ethan Lee <ethanalee@google.com>

terraform/environment/worker.tf

diff --git a/terraform/environment/worker.tf b/terraform/environment/worker.tf
index ce687aa..0eaa618 100644
--- a/terraform/environment/worker.tf
+++ b/terraform/environment/worker.tf
@@ -49,7 +49,7 @@
   pkgsite_db             = "${var.pkgsite_db_project}:${tolist(var.regions)[0]}:${var.pkgsite_db_name}"
   task_queues = flatten([
     for region in var.regions : [
-      for i in range(5) : {
+      for i in range(7) : {
         name = format("%s-%s-%05s", var.env, region, i)
         region = region
         url = data.google_cloud_run_service.worker[region].status[0].url