chore(deps-dev): bump coffeescript from 2.6.0 to 2.6.1 (#2988)

Bumps [coffeescript](https://github.com/jashkenas/coffeescript) from 2.6.0 to 2.6.1.
- [Release notes](https://github.com/jashkenas/coffeescript/releases)
- [Commits](jashkenas/coffeescript@2.6.0...2.6.1)

---
updated-dependencies:
- dependency-name: coffeescript
  dependency-type: direct:development
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <[email protected]>

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

yarn.lock

@@ -3287,9 +3287,9 @@ code-point-at@^1.0.0:
   integrity sha1-DQcLTQQ6W+ozovGkDi7bPZpMz3c=
 
 coffeescript@^2.5.1:
-  version "2.6.0"
-  resolved "https://registry.yarnpkg.com/coffeescript/-/coffeescript-2.6.0.tgz#927d52aa03df17d445c93c1afb66b081d26e1fa0"
-  integrity sha512-gCGXhR72sTAdEr+oZh3FcOj04DrcMc9lZYSJUBNudkQ4tQXuPKE3cvcYVbK/HiVW+zFzLmnZdHexuJ33ufLZOg==
+  version "2.6.1"
+  resolved "https://registry.yarnpkg.com/coffeescript/-/coffeescript-2.6.1.tgz#f9e5d4930e1b8a1c5cfba7f95eebd18694ce58fd"
+  integrity sha512-GG5nkF93qII8HmHqnnibkgpp/SV7PSnSPiWsbinwya7nNOe95aE/x2xrKZJFks8Qpko3TNrC+/LahaKgrz5YCg==
 
 collect-v8-coverage@^1.0.0:
   version "1.0.1"