docs: update CONTRIBUTORS.md

Author: allcontributors[bot]

CONTRIBUTORS.md

@@ -37,6 +37,7 @@ This project exists thanks to the following contributors
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       <td align="center" valign="top" width="14.28%"><a href="https://github.com/lithomas1"><img src="https://avatars.githubusercontent.com/u/47963215?v=4?s=100" width="100px;" alt="Thomas Li"/><br /><sub><b>Thomas Li</b></sub></a><br /><a href="https://github.com/data-apis/array-api-extra/issues?q=author%3Alithomas1" title="Bug reports">🐛</a> <a href="#tool-lithomas1" title="Tools">🔧</a></td>
+      <td align="center" valign="top" width="14.28%"><a href="https://github.com/pearu"><img src="https://avatars.githubusercontent.com/u/402156?v=4?s=100" width="100px;" alt="Pearu Peterson"/><br /><sub><b>Pearu Peterson</b></sub></a><br /><a href="https://github.com/data-apis/array-api-extra/pulls?q=is%3Apr+reviewed-by%3Apearu" title="Reviewed Pull Requests">👀</a></td>
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