Update to the latest cli_util

Fixes a bug with a frozen spinner.

Change-Id: I68af1ee78580c09c35c767f2877c08847230b6b9
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/198422
Auto-Submit: Nate Bosch <nbosch@google.com>
Commit-Queue: Nate Bosch <nbosch@google.com>
Commit-Queue: Jake Macdonald <jakemac@google.com>
Reviewed-by: Jake Macdonald <jakemac@google.com>
diff --git a/DEPS b/DEPS
index ae9b81f..92a018b 100644
--- a/DEPS
+++ b/DEPS
@@ -82,7 +82,7 @@
   "browser-compat-data_tag": "v1.0.22",
   "charcode_rev": "bcd8a12c315b7a83390e4865ad847ecd9344cba2",
   "chrome_rev" : "19997",
-  "cli_util_rev" : "50cc840b146615899e97b892578848401b2028d5",
+  "cli_util_rev" : "8a73cd7eca373ff71d290ccf47d4829e5ca44209",
   "clock_rev" : "a494269254ba978e7ef8f192c5f7fec3fc05b9d3",
   "collection_rev": "9967dcd3d7645db6de48d5abfab3018bb0c84236",
   "convert_rev": "a60156c6efd653657c8926b5788219ed609917d7",