docs: add derberg as a contributor for bug, code (#303)

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

.all-contributorsrc

@@ -67,7 +67,9 @@
       "avatar_url": "https://avatars.githubusercontent.com/u/6995927?v=4",
       "profile": "https://dev.to/derberg",
       "contributions": [
-        "review"
+        "review",
+        "bug",
+        "code"
       ]
     },
     {

README.md

@@ -175,7 +175,7 @@ Thanks goes to these wonderful people ([emoji key](https://allcontributors.org/d
     <td align="center"><a href="https://github.com/czlowiek488"><img src="https://avatars.githubusercontent.com/u/34620109?v=4?s=100" width="100px;" alt=""/><br /><sub><b>czlowiek488</b></sub></a><br /><a href="https://github.com/asyncapi/modelina/issues?q=author%3Aczlowiek488" title="Bug reports">🐛</a> <a href="https://github.com/asyncapi/modelina/pulls?q=is%3Apr+reviewed-by%3Aczlowiek488" title="Reviewed Pull Requests">👀</a> <a href="#ideas-czlowiek488" title="Ideas, Planning, & Feedback">🤔</a></td>
     <td align="center"><a href="https://github.com/smoya"><img src="https://avatars.githubusercontent.com/u/1083296?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Sergio Moya</b></sub></a><br /><a href="https://github.com/asyncapi/modelina/issues?q=author%3Asmoya" title="Bug reports">🐛</a> <a href="https://github.com/asyncapi/modelina/commits?author=smoya" title="Code">💻</a> <a href="https://github.com/asyncapi/modelina/commits?author=smoya" title="Tests">⚠️</a> <a href="https://github.com/asyncapi/modelina/commits?author=smoya" title="Documentation">📖</a> <a href="https://github.com/asyncapi/modelina/pulls?q=is%3Apr+reviewed-by%3Asmoya" title="Reviewed Pull Requests">👀</a></td>
     <td align="center"><a href="https://github.com/jonaslagoni"><img src="https://avatars.githubusercontent.com/u/13396189?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Jonas Lagoni</b></sub></a><br /><a href="https://github.com/asyncapi/modelina/issues?q=author%3Ajonaslagoni" title="Bug reports">🐛</a> <a href="https://github.com/asyncapi/modelina/commits?author=jonaslagoni" title="Code">💻</a> <a href="https://github.com/asyncapi/modelina/commits?author=jonaslagoni" title="Documentation">📖</a> <a href="#ideas-jonaslagoni" title="Ideas, Planning, & Feedback">🤔</a> <a href="#maintenance-jonaslagoni" title="Maintenance">🚧</a> <a href="#question-jonaslagoni" title="Answering Questions">💬</a> <a href="https://github.com/asyncapi/modelina/commits?author=jonaslagoni" title="Tests">⚠️</a> <a href="https://github.com/asyncapi/modelina/pulls?q=is%3Apr+reviewed-by%3Ajonaslagoni" title="Reviewed Pull Requests">👀</a></td>
-    <td align="center"><a href="https://dev.to/derberg"><img src="https://avatars.githubusercontent.com/u/6995927?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Lukasz Gornicki</b></sub></a><br /><a href="https://github.com/asyncapi/modelina/pulls?q=is%3Apr+reviewed-by%3Aderberg" title="Reviewed Pull Requests">👀</a></td>
+    <td align="center"><a href="https://dev.to/derberg"><img src="https://avatars.githubusercontent.com/u/6995927?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Lukasz Gornicki</b></sub></a><br /><a href="https://github.com/asyncapi/modelina/pulls?q=is%3Apr+reviewed-by%3Aderberg" title="Reviewed Pull Requests">👀</a> <a href="https://github.com/asyncapi/modelina/issues?q=author%3Aderberg" title="Bug reports">🐛</a> <a href="https://github.com/asyncapi/modelina/commits?author=derberg" title="Code">💻</a></td>
     <td align="center"><a href="https://github.com/arjungarg07"><img src="https://avatars.githubusercontent.com/u/53009722?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Arjun Garg</b></sub></a><br /><a href="https://github.com/asyncapi/modelina/commits?author=arjungarg07" title="Code">💻</a></td>
     <td align="center"><a href="http://www.fmvilas.com"><img src="https://avatars.githubusercontent.com/u/242119?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Fran Méndez</b></sub></a><br /><a href="https://github.com/asyncapi/modelina/pulls?q=is%3Apr+reviewed-by%3Afmvilas" title="Reviewed Pull Requests">👀</a></td>
   </tr>