chore: update contributors

Author: Xunnamius

.all-contributorsrc

@@ -218,7 +218,7 @@
       "name": "Shinji Nakamatsu",
       "avatar_url": "https://avatars.githubusercontent.com/u/19329?v=4",
       "profile": "https://twitter.com/snaka",
-      "contributions": ["doc"]
+      "contributions": ["doc", "bug", "research"]
     }
   ]
 }

README.md

@@ -1541,7 +1541,7 @@ key][x-repo-all-contributors-emojis]):
       <td align="center" valign="top" width="16.66%"><a href="https://github.com/kingstarfly"><img src="https://avatars.githubusercontent.com/u/38955962?v=4?s=100" width="100px;" alt="Xing Xiang"/><br /><sub><b>Xing Xiang</b></sub></a><br /><a href="https://github.com/Xunnamius/next-test-api-route-handler/commits?author=kingstarfly" title="Documentation">📖</a></td>
       <td align="center" valign="top" width="16.66%"><a href="https://www.kaarlej.com/"><img src="https://avatars.githubusercontent.com/u/117437182?v=4?s=100" width="100px;" alt="Kaarle Järvinen"/><br /><sub><b>Kaarle Järvinen</b></sub></a><br /><a href="https://github.com/Xunnamius/next-test-api-route-handler/issues?q=author%3AKaarleJ" title="Bug reports">🐛</a></td>
       <td align="center" valign="top" width="16.66%"><a href="https://rorysaur.blog/"><img src="https://avatars.githubusercontent.com/u/4686089?v=4?s=100" width="100px;" alt="Rory Ou"/><br /><sub><b>Rory Ou</b></sub></a><br /><a href="https://github.com/Xunnamius/next-test-api-route-handler/issues?q=author%3Arorysaur" title="Bug reports">🐛</a> <a href="#research-rorysaur" title="Research">🔬</a> <a href="https://github.com/Xunnamius/next-test-api-route-handler/commits?author=rorysaur" title="Documentation">📖</a></td>
-      <td align="center" valign="top" width="16.66%"><a href="https://twitter.com/snaka"><img src="https://avatars.githubusercontent.com/u/19329?v=4?s=100" width="100px;" alt="Shinji Nakamatsu"/><br /><sub><b>Shinji Nakamatsu</b></sub></a><br /><a href="https://github.com/Xunnamius/next-test-api-route-handler/commits?author=snaka" title="Documentation">📖</a></td>
+      <td align="center" valign="top" width="16.66%"><a href="https://twitter.com/snaka"><img src="https://avatars.githubusercontent.com/u/19329?v=4?s=100" width="100px;" alt="Shinji Nakamatsu"/><br /><sub><b>Shinji Nakamatsu</b></sub></a><br /><a href="https://github.com/Xunnamius/next-test-api-route-handler/commits?author=snaka" title="Documentation">📖</a> <a href="https://github.com/Xunnamius/next-test-api-route-handler/issues?q=author%3Asnaka" title="Bug reports">🐛</a> <a href="#research-snaka" title="Research">🔬</a></td>
     </tr>
   </tbody>
   <tfoot>