Update devtools dep to version 2.9.2+1

Change-Id: I3b0fdc6100874794e874471d3c8e1b269c65d2db
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/228902
Reviewed-by: Ben Konyi <bkonyi@google.com>
diff --git a/DEPS b/DEPS
index accf68a..b13d2dc 100644
--- a/DEPS
+++ b/DEPS
@@ -110,7 +110,7 @@
   "dart_style_rev": "6f894c0ca33686122be9085f06e5b9bf6ad55262",
 
   "dartdoc_rev" : "f9cfab1b84176873c80b89e7c8b54c669344f9ed",
-  "devtools_rev" : "85932bb66aa782c4b2c528be7718960bf256ffb7",
+  "devtools_rev" : "013958fbd45351e5975068756b7b9114465a7f98",
   "ffi_rev": "4dd32429880a57b64edaf54c9d5af8a9fa9a4ffb",
   "fixnum_rev": "848341f061359ef7ddc0cad472c2ecbb036b28ac",
   "file_rev": "0e09370f581ab6388d46fda4cdab66638c0171a1",