update submodule for windows fix

sjanuary · mattcolegate · commit 65cc7df42539 · 2018-11-21T10:35:35.000Z
diff --git a/omr-agentcore b/omr-agentcore
@@ -1 +1 @@
-Subproject commit d94245a392f38b50d6dc884b3130371df5e50fb5
+Subproject commit 918dbd31f8ce9636a6813de28076ca5c0852d4f8
