Update pubspec.lock with the upper SDK constraint. (#1545)

isoos · web-flow · commit f65e67850a35 · 2018-08-23T13:35:08.000+02:00
diff --git a/app/pubspec.lock b/app/pubspec.lock
@@ -604,4 +604,4 @@ packages:
     source: hosted
     version: "2.1.15"
 sdks:
-  dart: ">=2.0.0 <2.2.0"
+  dart: ">=2.0.0 <3.0.0"
