contribute a issue template for package:args (#139)

.github/ISSUE_TEMPLATE/args.md

@@ -0,0 +1,5 @@
+---
+name: "package:args"
+about: "Create a bug or file a feature request against package:args."
+labels: "package:args"
+---

CONTRIBUTING.md

@@ -38,7 +38,7 @@ new file please also add this. The year should be a single number stating the
 year the file was created (don't use a range like "2011-2012"). Additionally, if
 you edit an existing file, you shouldn't update the year.
 
-    // Copyright (c) 2023, the Dart project authors.  Please see the AUTHORS file
+    // Copyright (c) 2024, the Dart project authors.  Please see the AUTHORS file
     // for details. All rights reserved. Use of this source code is governed by a
     // BSD-style license that can be found in the LICENSE file.
 
@@ -48,4 +48,4 @@ This project follows
 [Google's Open Source Community Guidelines](https://opensource.google/conduct/).
 
 We pledge to maintain an open and welcoming environment. For details, see our
-[code of conduct](https://dart.dev/code-of-conduct).
+[code of conduct](https://dart.dev/code-of-conduct).

pkgs/args/example/arg_parser/pubspec.yaml

@@ -6,8 +6,10 @@ name: arg_parser_example
 version: 1.0.0
 description: An example of using ArgParser
 publish_to: 'none'
+
 environment:
-  sdk: '>=2.14.0 <3.0.0'
+  sdk: ^3.0.0
+
 dependencies:
   args:
     path: ../..

pkgs/args/example/command_runner/pubspec.yaml

@@ -6,8 +6,10 @@ name: command_runner_example
 version: 1.0.0
 description: An example of using CommandRunner
 publish_to: 'none'
+
 environment:
-  sdk: '>=2.14.0 <3.0.0'
+  sdk: ^3.0.0
+
 dependencies:
   args:
     path: ../..