Support the latest version of pkg/analyzer

Prepare for release

Author: kevmoo

json_serializable/CHANGELOG.md

@@ -1,3 +1,7 @@
+## 0.3.1+2
+
+* Support the latest version of the `analyzer` package.
+
 ## 0.3.1+1
 
 * Expanded `package:build` support to allow version `0.12.0`.

json_serializable/pubspec.yaml

@@ -1,12 +1,12 @@
 name: json_serializable
-version: 0.3.1+1
+version: 0.3.1+2
 author: Dart Team <misc@dartlang.org>
 description: Generates utilities to aid in serializing to/from JSON.
 homepage: https://github.com/dart-lang/json_serializable
 environment:
   sdk: '>=2.0.0-dev <2.0.0'
 dependencies:
-  analyzer: '>=0.29.10 <0.31.0'
+  analyzer: '>=0.29.10 <0.32.0'
   build: '>=0.9.0 <0.13.0'
   build_config: ^0.2.1
   cli_util: ^0.1.0