docs: add MichaelDeBoey as a contributor [skip ci] (#235)

* 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

@@ -366,7 +366,8 @@
       "profile": "https://michaeldeboey.be",
       "contributions": [
         "code",
-        "platform"
+        "platform",
+        "maintenance"
       ]
     }
   ],

README.md

@@ -220,7 +220,7 @@ Thanks goes to these wonderful people ([emoji key](https://allcontributors.org/d
     <td align="center"><a href="https://skovy.dev"><img src="https://avatars1.githubusercontent.com/u/5247455?v=4" width="100px;" alt=""/><br /><sub><b>Spencer Miskoviak</b></sub></a><br /><a href="https://github.com/testing-library/eslint-plugin-testing-library/commits?author=skovy" title="Code">💻</a> <a href="https://github.com/testing-library/eslint-plugin-testing-library/commits?author=skovy" title="Tests">⚠️</a> <a href="https://github.com/testing-library/eslint-plugin-testing-library/commits?author=skovy" title="Documentation">📖</a> <a href="#ideas-skovy" title="Ideas, Planning, & Feedback">🤔</a></td>
     <td align="center"><a href="https://twitter.com/Gpx"><img src="https://avatars0.githubusercontent.com/u/767959?v=4" width="100px;" alt=""/><br /><sub><b>Giorgio Polvara</b></sub></a><br /><a href="https://github.com/testing-library/eslint-plugin-testing-library/commits?author=Gpx" title="Code">💻</a> <a href="https://github.com/testing-library/eslint-plugin-testing-library/commits?author=Gpx" title="Tests">⚠️</a> <a href="https://github.com/testing-library/eslint-plugin-testing-library/commits?author=Gpx" title="Documentation">📖</a></td>
     <td align="center"><a href="https://github.com/jdanil"><img src="https://avatars0.githubusercontent.com/u/8342105?v=4" width="100px;" alt=""/><br /><sub><b>Josh David</b></sub></a><br /><a href="https://github.com/testing-library/eslint-plugin-testing-library/commits?author=jdanil" title="Documentation">📖</a></td>
-    <td align="center"><a href="https://michaeldeboey.be"><img src="https://avatars3.githubusercontent.com/u/6643991?v=4" width="100px;" alt=""/><br /><sub><b>Michaël De Boey</b></sub></a><br /><a href="https://github.com/testing-library/eslint-plugin-testing-library/commits?author=MichaelDeBoey" title="Code">💻</a> <a href="#platform-MichaelDeBoey" title="Packaging/porting to new platform">📦</a></td>
+    <td align="center"><a href="https://michaeldeboey.be"><img src="https://avatars3.githubusercontent.com/u/6643991?v=4" width="100px;" alt=""/><br /><sub><b>Michaël De Boey</b></sub></a><br /><a href="https://github.com/testing-library/eslint-plugin-testing-library/commits?author=MichaelDeBoey" title="Code">💻</a> <a href="#platform-MichaelDeBoey" title="Packaging/porting to new platform">📦</a> <a href="#maintenance-MichaelDeBoey" title="Maintenance">🚧</a></td>
   </tr>
 </table>