[hotfix] update overlay

cosminbasca · cosminbasca · commit 748e302a4311 · 2018-10-11T09:17:10.000-07:00
PullRequest: graalpython/225
diff --git a/ci.jsonnet b/ci.jsonnet
@@ -1,5 +1,5 @@
 {
-  overlay: "934f7a99e60cbc8d0affd873805c057b576f3709",
+  overlay: "2b63e24614bc48b008ea15460ab22129f4a2c442",
 
   // ======================================================================================================
   // 
