Fix the repository URL in pubspec.yaml (#140)

* Fix the repository URL in `pubspec.yaml`

The branch name `main` must be preceded by `tree`.

* Bump the version to 2.6.1-wip to add a changelog entry

Author: sschuberth

pkgs/args/CHANGELOG.md

@@ -1,3 +1,7 @@
+## 2.6.1-wip
+
+* Fix the reporitory URL in `pubspec.yaml`.
+
 ## 2.6.0
 
 * Added source argument when throwing a `ArgParserException`.

pkgs/args/pubspec.yaml

@@ -1,9 +1,9 @@
 name: args
-version: 2.6.0
+version: 2.6.1-wip
 description: >-
   Library for defining parsers for parsing raw command-line arguments into a set
   of options and values using GNU and POSIX style options.
-repository: https://github.com/dart-lang/core/main/pkgs/args
+repository: https://github.com/dart-lang/core/tree/main/pkgs/args
 
 topics:
   - cli