Declare support for async 2.0.0 (dart-lang/test_descriptor#5)

pkgs/test_descriptor/CHANGELOG.md

diff --git a/pkgs/test_descriptor/CHANGELOG.md b/pkgs/test_descriptor/CHANGELOG.md
index 2c8a1ab..3d9ab03 100644
--- a/pkgs/test_descriptor/CHANGELOG.md
+++ b/pkgs/test_descriptor/CHANGELOG.md
@@ -1,3 +1,7 @@
+## 1.0.2
+
+* Declare support for `async` 2.0.0.
+
 ## 1.0.1
 
 * `FileDescriptor.validate()` now allows invalid UTF-8 files.

pkgs/test_descriptor/pubspec.yaml

diff --git a/pkgs/test_descriptor/pubspec.yaml b/pkgs/test_descriptor/pubspec.yaml
index 1dba3f3..3a8472e 100644
--- a/pkgs/test_descriptor/pubspec.yaml
+++ b/pkgs/test_descriptor/pubspec.yaml
@@ -1,5 +1,5 @@
 name: test_descriptor
-version: 1.0.1
+version: 1.0.2
 description: An API for defining and verifying directory structures.
 author: Dart Team <misc@dartlang.org>
 homepage: https://github.com/dart-lang/test_descriptor
@@ -8,7 +8,7 @@
   sdk: '>=1.8.0 <2.0.0'
 
 dependencies:
-  async: '^1.10.0'
+  async: '>=1.10.0 <3.0.0'
   collection: '^1.5.0'
   matcher: '^0.12.0'
   path: '^1.0.0'