[http] prepare v1.3.0 release (#1451)

Author: kevmoo

pkgs/http/CHANGELOG.md

@@ -1,4 +1,4 @@
-## 1.3.0-wip
+## 1.3.0
 
 * Fixed unintended HTML tags in doc comments.
 * Switched `BrowserClient` to use Fetch API instead of `XMLHttpRequest`.

pkgs/http/pubspec.yaml

@@ -1,12 +1,12 @@
 name: http
-version: 1.3.0-wip
+version: 1.3.0
 description: A composable, multi-platform, Future-based API for HTTP requests.
 repository: https://github.com/dart-lang/http/tree/master/pkgs/http
 
 topics:
- - http
- - network
- - protocols
+  - http
+  - network
+  - protocols
 
 environment:
   sdk: ^3.4.0

pkgs/http2/pubspec.yaml

@@ -4,9 +4,9 @@ description: A HTTP/2 implementation in Dart.
 repository: https://github.com/dart-lang/http/tree/master/pkgs/http2
 
 topics:
- - http
- - network
- - protocols
+  - http
+  - network
+  - protocols
 
 environment:
   sdk: ^3.2.0