docs: add Arthie as a contributor for code (#504)

* docs: update README.md [skip ci]

* docs: update .all-contributorsrc [skip ci]

---------

Co-authored-by: allcontributors[bot] <46447321+allcontributors[bot]@users.noreply.github.com>

Author: allcontributors[bot]

.all-contributorsrc

@@ -410,6 +410,15 @@
         "code",
         "test"
       ]
+    },
+    {
+      "login": "Arthie",
+      "name": "Arthur Petrie",
+      "avatar_url": "https://avatars.githubusercontent.com/u/16376476?v=4",
+      "profile": "https://arthurpetrie.com",
+      "contributions": [
+        "code"
+      ]
     }
   ],
   "contributorsPerLine": 7,

README.md

@@ -270,6 +270,9 @@ Thanks goes to these people ([emoji key][emojis]):
       <td align="center" valign="top" width="14.28%"><a href="https://github.com/Hyperxq"><img src="https://avatars.githubusercontent.com/u/22332354?v=4?s=100" width="100px;" alt="Daniel Ramírez Barrientos"/><br /><sub><b>Daniel Ramírez Barrientos</b></sub></a><br /><a href="https://github.com/testing-library/angular-testing-library/commits?author=Hyperxq" title="Code">💻</a></td>
       <td align="center" valign="top" width="14.28%"><a href="https://github.com/mlz11"><img src="https://avatars.githubusercontent.com/u/94069699?v=4?s=100" width="100px;" alt="Mahdi Lazraq"/><br /><sub><b>Mahdi Lazraq</b></sub></a><br /><a href="https://github.com/testing-library/angular-testing-library/commits?author=mlz11" title="Code">💻</a> <a href="https://github.com/testing-library/angular-testing-library/commits?author=mlz11" title="Tests">⚠️</a></td>
     </tr>
+    <tr>
+      <td align="center" valign="top" width="14.28%"><a href="https://arthurpetrie.com"><img src="https://avatars.githubusercontent.com/u/16376476?v=4?s=100" width="100px;" alt="Arthur Petrie"/><br /><sub><b>Arthur Petrie</b></sub></a><br /><a href="https://github.com/testing-library/angular-testing-library/commits?author=Arthie" title="Code">💻</a></td>
+    </tr>
   </tbody>
 </table>