bump to linter 0.1.63


* updated `unawaited_futures` to ignore assignments within cascades
* new lint: `sort_dependencies`

Change-Id: Iec39fce58d4c6230613f947ed6fc99fec516c722
Reviewed-on: https://dart-review.googlesource.com/75942
Reviewed-by: Brian Wilkerson <brianwilkerson@google.com>
Commit-Queue: Phil Quitslund <pquitslund@google.com>
diff --git a/DEPS b/DEPS
index fd9dabb..82d3de2 100644
--- a/DEPS
+++ b/DEPS
@@ -95,7 +95,7 @@
   "intl_tag": "0.15.6",
   "jinja2_rev": "2222b31554f03e62600cd7e383376a7c187967a1",
   "json_rpc_2_tag": "2.0.9",
-  "linter_tag": "0.1.62",
+  "linter_tag": "0.1.63",
   "logging_tag": "0.11.3+2",
   "markdown_tag": "2.0.2",
   "matcher_tag": "0.12.3",