docs: add artur-ciocanu as a contributor for maintenance (#1714)

* update README.md

* update .all-contributorsrc

---------

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

.all-contributorsrc

@@ -344,7 +344,8 @@
         "bug",
         "example",
         "doc",
-        "test"
+        "test",
+        "maintenance"
       ]
     },
     {

README.md

@@ -361,7 +361,7 @@ Thanks go out to these wonderful people ([emoji key](https://allcontributors.org
     </tr>
     <tr>
       <td align="center" valign="top" width="14.28%"><a href="https://github.com/PanMan"><img src="https://avatars.githubusercontent.com/u/978501?v=4?s=100" width="100px;" alt="PanMan"/><br /><sub><b>PanMan</b></sub></a><br /><a href="https://github.com/asyncapi/modelina/commits?author=PanMan" title="Documentation">📖</a></td>
-      <td align="center" valign="top" width="14.28%"><a href="https://github.com/artur-ciocanu"><img src="https://avatars.githubusercontent.com/u/743192?v=4?s=100" width="100px;" alt="artur-ciocanu"/><br /><sub><b>artur-ciocanu</b></sub></a><br /><a href="https://github.com/asyncapi/modelina/commits?author=artur-ciocanu" title="Code">💻</a> <a href="https://github.com/asyncapi/modelina/issues?q=author%3Aartur-ciocanu" title="Bug reports">🐛</a> <a href="#example-artur-ciocanu" title="Examples">💡</a> <a href="https://github.com/asyncapi/modelina/commits?author=artur-ciocanu" title="Documentation">📖</a> <a href="https://github.com/asyncapi/modelina/commits?author=artur-ciocanu" title="Tests">⚠️</a></td>
+      <td align="center" valign="top" width="14.28%"><a href="https://github.com/artur-ciocanu"><img src="https://avatars.githubusercontent.com/u/743192?v=4?s=100" width="100px;" alt="artur-ciocanu"/><br /><sub><b>artur-ciocanu</b></sub></a><br /><a href="https://github.com/asyncapi/modelina/commits?author=artur-ciocanu" title="Code">💻</a> <a href="https://github.com/asyncapi/modelina/issues?q=author%3Aartur-ciocanu" title="Bug reports">🐛</a> <a href="#example-artur-ciocanu" title="Examples">💡</a> <a href="https://github.com/asyncapi/modelina/commits?author=artur-ciocanu" title="Documentation">📖</a> <a href="https://github.com/asyncapi/modelina/commits?author=artur-ciocanu" title="Tests">⚠️</a> <a href="#maintenance-artur-ciocanu" title="Maintenance">🚧</a></td>
       <td align="center" valign="top" width="14.28%"><a href="https://micro-jumbo.eu/"><img src="https://avatars.githubusercontent.com/u/11511697?v=4?s=100" width="100px;" alt="Cyprian Gracz"/><br /><sub><b>Cyprian Gracz</b></sub></a><br /><a href="https://github.com/asyncapi/modelina/commits?author=micro-jumbo" title="Code">💻</a> <a href="https://github.com/asyncapi/modelina/commits?author=micro-jumbo" title="Tests">⚠️</a> <a href="https://github.com/asyncapi/modelina/issues?q=author%3Amicro-jumbo" title="Bug reports">🐛</a></td>
       <td align="center" valign="top" width="14.28%"><a href="https://www.printnanny.ai"><img src="https://avatars.githubusercontent.com/u/2601819?v=4?s=100" width="100px;" alt="Leigh Johnson"/><br /><sub><b>Leigh Johnson</b></sub></a><br /><a href="https://github.com/asyncapi/modelina/commits?author=leigh-johnson" title="Code">💻</a> <a href="https://github.com/asyncapi/modelina/commits?author=leigh-johnson" title="Tests">⚠️</a> <a href="#example-leigh-johnson" title="Examples">💡</a> <a href="https://github.com/asyncapi/modelina/commits?author=leigh-johnson" title="Documentation">📖</a> <a href="#maintenance-leigh-johnson" title="Maintenance">🚧</a> <a href="https://github.com/asyncapi/modelina/pulls?q=is%3Apr+reviewed-by%3Aleigh-johnson" title="Reviewed Pull Requests">👀</a></td>
       <td align="center" valign="top" width="14.28%"><a href="https://github.com/nitintejuja"><img src="https://avatars.githubusercontent.com/u/95347924?v=4?s=100" width="100px;" alt="Nitin Tejuja"/><br /><sub><b>Nitin Tejuja</b></sub></a><br /><a href="https://github.com/asyncapi/modelina/commits?author=nitintejuja" title="Tests">⚠️</a> <a href="#example-nitintejuja" title="Examples">💡</a></td>