docs: add piecyk as a contributor for bug (#837)

* docs: update CONTRIBUTORS.md

* docs: update .all-contributorsrc

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

Author: allcontributors[bot]

.all-contributorsrc

@@ -1124,6 +1124,15 @@
         "code",
         "test"
       ]
+    },
+    {
+      "login": "piecyk",
+      "name": "Damian Pieczynski",
+      "avatar_url": "https://avatars.githubusercontent.com/u/82964?v=4",
+      "profile": "https://twitter.com/piecu",
+      "contributions": [
+        "bug"
+      ]
     }
   ],
   "commitConvention": "none",

CONTRIBUTORS.md

@@ -154,6 +154,7 @@ Thanks goes to these wonderful people ([emoji key][emojis]):
     <td align="center"><a href="https://matan.io/"><img src="https://avatars.githubusercontent.com/u/12711091?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Matan Borenkraout</b></sub></a><br /><a href="https://github.com/testing-library/user-event/commits?author=MatanBobi" title="Documentation">📖</a></td>
     <td align="center"><a href="https://kentcdodds.com/"><img src="https://avatars.githubusercontent.com/u/1500684?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Kent C. Dodds</b></sub></a><br /><a href="https://github.com/testing-library/user-event/commits?author=kentcdodds" title="Code">💻</a> <a href="#infra-kentcdodds" title="Infrastructure (Hosting, Build-Tools, etc)">🚇</a> <a href="#maintenance-kentcdodds" title="Maintenance">🚧</a> <a href="https://github.com/testing-library/user-event/pulls?q=is%3Apr+reviewed-by%3Akentcdodds" title="Reviewed Pull Requests">👀</a> <a href="https://github.com/testing-library/user-event/commits?author=kentcdodds" title="Tests">⚠️</a></td>
     <td align="center"><a href="https://github.com/Dennis273"><img src="https://avatars.githubusercontent.com/u/19815164?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Dennis273</b></sub></a><br /><a href="https://github.com/testing-library/user-event/issues?q=author%3ADennis273" title="Bug reports">🐛</a> <a href="https://github.com/testing-library/user-event/commits?author=Dennis273" title="Code">💻</a> <a href="https://github.com/testing-library/user-event/commits?author=Dennis273" title="Tests">⚠️</a></td>
+    <td align="center"><a href="https://twitter.com/piecu"><img src="https://avatars.githubusercontent.com/u/82964?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Damian Pieczynski</b></sub></a><br /><a href="https://github.com/testing-library/user-event/issues?q=author%3Apiecyk" title="Bug reports">🐛</a></td>
   </tr>
 </table>