Fix idfint lab nodepool instance type name

Author: fajpunk

environment/deployments/science-platform/env/integration-gke.tfvars

@@ -30,7 +30,7 @@ node_pools = [
   },
   {
     name               = "user-lab-pool"
-    machine_type       = "n2-himem-16"
+    machine_type       = "n2-highmem-16"
     node_locations     = "us-central1-b"
     local_ssd_count    = 0
     auto_repair        = true