Adds Disk Space Checks for /opt/vmray

Joining the previous PR for tag v3.2.0

base/sensu-configuration/checks.tf

@@ -39,7 +39,9 @@ locals {
     # Docker Hosts
     "/opt/docker/containers": "20%",
     "/opt/docker/overlay": "20%",
-    "/opt/docker/overlay2": "20%"
+    "/opt/docker/overlay2": "20%",
+    # VMRay
+    "/opt/vmray": "20%"
   }
 }