factorio: bump up resource limits

Change-Id: If43889bb820abb2c034378d0af3fa2bcfde1361e
diff --git a/games/factorio/kube/factorio.libsonnet b/games/factorio/kube/factorio.libsonnet
index 6684fc0..57d5bf4 100644
--- a/games/factorio/kube/factorio.libsonnet
+++ b/games/factorio/kube/factorio.libsonnet
@@ -25,8 +25,8 @@
                 memory: "500Mi",
             },
             limits: {
-                cpu: "1",
-                memory: "1Gi",
+                cpu: "2",
+                memory: "2Gi",
             },
         },