Removes 2 besteffort nodes

* This is to help us prevent redis crashing due to the high amount of
client connections
Signed-off-by: John T Skarbek <[email protected]>

environments/gprd/variables.tf

@@ -295,7 +295,7 @@ variable "node_count" {
     "share"                 = 1
     "sd-exporter"           = 1
     "sidekiq-asap"          = 5
-    "sidekiq-besteffort"    = 6
+    "sidekiq-besteffort"    = 4
     "sidekiq-elasticsearch" = 0
     "sidekiq-pages"         = 6
     "sidekiq-pipeline"      = 3