docs: add MatthewNewland as a contributor for code, test, and bug (#1877)

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

Author: allcontributors[bot]

.all-contributorsrc

@@ -979,7 +979,9 @@
       "avatar_url": "https://avatars.githubusercontent.com/u/9618670?v=4",
       "profile": "https://github.com/MatthewNewland",
       "contributions": [
-        "bug"
+        "bug",
+        "code",
+        "test"
       ]
     },
     {

README.md

@@ -414,7 +414,7 @@ Thanks goes to these wonderful people ([emoji key](https://allcontributors.org/d
       <td align="center" valign="top" width="14.28%"><a href="https://github.com/aviral-nayya"><img src="https://avatars.githubusercontent.com/u/121891493?v=4?s=100" width="100px;" alt="aviral-nayya"/><br /><sub><b>aviral-nayya</b></sub></a><br /><a href="https://github.com/litestar-org/litestar/commits?author=aviral-nayya" title="Code">💻</a></td>
       <td align="center" valign="top" width="14.28%"><a href="https://github.com/whiskeyriver"><img src="https://avatars.githubusercontent.com/u/162092?v=4?s=100" width="100px;" alt="whiskeyriver"/><br /><sub><b>whiskeyriver</b></sub></a><br /><a href="https://github.com/litestar-org/litestar/commits?author=whiskeyriver" title="Code">💻</a></td>
       <td align="center" valign="top" width="14.28%"><a href="https://hexcode.tech"><img src="https://avatars.githubusercontent.com/u/419606?v=4?s=100" width="100px;" alt="Phyo Arkar Lwin"/><br /><sub><b>Phyo Arkar Lwin</b></sub></a><br /><a href="https://github.com/litestar-org/litestar/commits?author=v3ss0n" title="Code">💻</a></td>
-      <td align="center" valign="top" width="14.28%"><a href="https://github.com/MatthewNewland"><img src="https://avatars.githubusercontent.com/u/9618670?v=4?s=100" width="100px;" alt="MatthewNewland"/><br /><sub><b>MatthewNewland</b></sub></a><br /><a href="https://github.com/litestar-org/litestar/issues?q=author%3AMatthewNewland" title="Bug reports">🐛</a></td>
+      <td align="center" valign="top" width="14.28%"><a href="https://github.com/MatthewNewland"><img src="https://avatars.githubusercontent.com/u/9618670?v=4?s=100" width="100px;" alt="MatthewNewland"/><br /><sub><b>MatthewNewland</b></sub></a><br /><a href="https://github.com/litestar-org/litestar/issues?q=author%3AMatthewNewland" title="Bug reports">🐛</a> <a href="https://github.com/litestar-org/litestar/commits?author=MatthewNewland" title="Code">💻</a> <a href="https://github.com/litestar-org/litestar/commits?author=MatthewNewland" title="Tests">⚠️</a></td>
       <td align="center" valign="top" width="14.28%"><a href="https://github.com/vtarchon"><img src="https://avatars.githubusercontent.com/u/1598170?v=4?s=100" width="100px;" alt="Tom Kuo"/><br /><sub><b>Tom Kuo</b></sub></a><br /><a href="https://github.com/litestar-org/litestar/issues?q=author%3Avtarchon" title="Bug reports">🐛</a></td>
       <td align="center" valign="top" width="14.28%"><a href="https://github.com/LeckerenSirupwaffeln"><img src="https://avatars.githubusercontent.com/u/83568015?v=4?s=100" width="100px;" alt="LeckerenSirupwaffeln"/><br /><sub><b>LeckerenSirupwaffeln</b></sub></a><br /><a href="https://github.com/litestar-org/litestar/issues?q=author%3ALeckerenSirupwaffeln" title="Bug reports">🐛</a></td>
       <td align="center" valign="top" width="14.28%"><a href="https://github.com/eldano1995"><img src="https://avatars.githubusercontent.com/u/24553679?v=4?s=100" width="100px;" alt="Daniel González Fernández"/><br /><sub><b>Daniel González Fernández</b></sub></a><br /><a href="https://github.com/litestar-org/litestar/commits?author=eldano1995" title="Documentation">📖</a></td>