Update contributors [skip ci]

Author: hipstersmoothie

.all-contributorsrc

@@ -19,7 +19,8 @@
         "code",
         "design",
         "ideas",
-        "doc"
+        "doc",
+        "test"
       ]
     },
     {

README.md

@@ -42,7 +42,7 @@ Thanks goes to these wonderful people ([emoji key](https://allcontributors.org/d
 <!-- markdownlint-disable -->
 <table>
   <tr>
-    <td align="center"><a href="https://adamdierkens.com"><img src="https://avatars1.githubusercontent.com/u/13004162?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Adam Dierkens</b></sub></a><br /><a href="https://github.com/intuit/design-systems-cli/commits?author=adierkens" title="Code">💻</a> <a href="#design-adierkens" title="Design">🎨</a> <a href="#ideas-adierkens" title="Ideas, Planning, & Feedback">🤔</a> <a href="https://github.com/intuit/design-systems-cli/commits?author=adierkens" title="Documentation">📖</a></td>
+    <td align="center"><a href="https://adamdierkens.com"><img src="https://avatars1.githubusercontent.com/u/13004162?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Adam Dierkens</b></sub></a><br /><a href="https://github.com/intuit/design-systems-cli/commits?author=adierkens" title="Code">💻</a> <a href="#design-adierkens" title="Design">🎨</a> <a href="#ideas-adierkens" title="Ideas, Planning, & Feedback">🤔</a> <a href="https://github.com/intuit/design-systems-cli/commits?author=adierkens" title="Documentation">📖</a> <a href="https://github.com/intuit/design-systems-cli/commits?author=adierkens" title="Tests">⚠️</a></td>
     <td align="center"><a href="http://hipstersmoothie.com"><img src="https://avatars3.githubusercontent.com/u/1192452?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Andrew Lisowski</b></sub></a><br /><a href="https://github.com/intuit/design-systems-cli/commits?author=hipstersmoothie" title="Code">💻</a> <a href="#design-hipstersmoothie" title="Design">🎨</a> <a href="https://github.com/intuit/design-systems-cli/commits?author=hipstersmoothie" title="Documentation">📖</a> <a href="#ideas-hipstersmoothie" title="Ideas, Planning, & Feedback">🤔</a> <a href="#infra-hipstersmoothie" title="Infrastructure (Hosting, Build-Tools, etc)">🚇</a> <a href="https://github.com/intuit/design-systems-cli/commits?author=hipstersmoothie" title="Tests">⚠️</a></td>
     <td align="center"><a href="http://tylerkrupicka.com"><img src="https://avatars1.githubusercontent.com/u/5761061?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Tyler Krupicka</b></sub></a><br /><a href="https://github.com/intuit/design-systems-cli/commits?author=tylerkrupicka" title="Code">💻</a> <a href="https://github.com/intuit/design-systems-cli/commits?author=tylerkrupicka" title="Documentation">📖</a> <a href="https://github.com/intuit/design-systems-cli/commits?author=tylerkrupicka" title="Tests">⚠️</a></td>
     <td align="center"><a href="https://github.com/kendallgassner"><img src="https://avatars0.githubusercontent.com/u/15275462?s=400&v=4?s=100" width="100px;" alt=""/><br /><sub><b>Kendall Gassner</b></sub></a><br /><a href="https://github.com/intuit/design-systems-cli/commits?author=kendallgassner" title="Code">💻</a></td>