docs: add ru4ert as a contributor for code, test, and doc (#684)

* docs: update README.md [skip ci]

* docs: update .all-contributorsrc [skip ci]

---------

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

Author: allcontributors[bot]

.all-contributorsrc

@@ -310,7 +310,8 @@
       "profile": "https://ru4ert.com/",
       "contributions": [
         "code",
-        "test"
+        "test",
+        "doc"
       ]
     },
     {

README.md

@@ -80,7 +80,7 @@ Thanks goes to these wonderful people ([emoji key](https://allcontributors.org/d
       <td align="center" valign="top" width="14.28%"><a href="https://github.com/martinoneutrino"><img src="https://avatars.githubusercontent.com/u/8833492?v=4?s=100" width="100px;" alt="Martin"/><br /><sub><b>Martin</b></sub></a><br /><a href="https://github.com/quarkiverse/quarkus-openapi-generator/commits?author=martinoneutrino" title="Code">💻</a></td>
       <td align="center" valign="top" width="14.28%"><a href="https://www.linkedin.com/in/matthias-ngeo/"><img src="https://avatars.githubusercontent.com/u/9427324?v=4?s=100" width="100px;" alt="Matthias Ngeo"/><br /><sub><b>Matthias Ngeo</b></sub></a><br /><a href="https://github.com/quarkiverse/quarkus-openapi-generator/commits?author=Pante" title="Documentation">📖</a></td>
       <td align="center" valign="top" width="14.28%"><a href="https://github.com/nmirasch"><img src="https://avatars.githubusercontent.com/u/2443754?v=4?s=100" width="100px;" alt="nmirasch"/><br /><sub><b>nmirasch</b></sub></a><br /><a href="https://github.com/quarkiverse/quarkus-openapi-generator/commits?author=nmirasch" title="Code">💻</a></td>
-      <td align="center" valign="top" width="14.28%"><a href="https://ru4ert.com/"><img src="https://avatars.githubusercontent.com/u/47078678?v=4?s=100" width="100px;" alt="Rupert Bogensperger"/><br /><sub><b>Rupert Bogensperger</b></sub></a><br /><a href="https://github.com/quarkiverse/quarkus-openapi-generator/commits?author=ru4ert" title="Code">💻</a> <a href="https://github.com/quarkiverse/quarkus-openapi-generator/commits?author=ru4ert" title="Tests">⚠️</a></td>
+      <td align="center" valign="top" width="14.28%"><a href="https://ru4ert.com/"><img src="https://avatars.githubusercontent.com/u/47078678?v=4?s=100" width="100px;" alt="Rupert Bogensperger"/><br /><sub><b>Rupert Bogensperger</b></sub></a><br /><a href="https://github.com/quarkiverse/quarkus-openapi-generator/commits?author=ru4ert" title="Code">💻</a> <a href="https://github.com/quarkiverse/quarkus-openapi-generator/commits?author=ru4ert" title="Tests">⚠️</a> <a href="https://github.com/quarkiverse/quarkus-openapi-generator/commits?author=ru4ert" title="Documentation">📖</a></td>
       <td align="center" valign="top" width="14.28%"><a href="https://github.com/boyi01"><img src="https://avatars.githubusercontent.com/u/14997968?v=4?s=100" width="100px;" alt="boyi01"/><br /><sub><b>boyi01</b></sub></a><br /><a href="https://github.com/quarkiverse/quarkus-openapi-generator/commits?author=boyi01" title="Code">💻</a> <a href="https://github.com/quarkiverse/quarkus-openapi-generator/commits?author=boyi01" title="Tests">⚠️</a></td>
       <td align="center" valign="top" width="14.28%"><a href="https://github.com/carlesarnal"><img src="https://avatars.githubusercontent.com/u/12640103?v=4?s=100" width="100px;" alt="Carles Arnal"/><br /><sub><b>Carles Arnal</b></sub></a><br /><a href="#maintenance-carlesarnal" title="Maintenance">🚧</a></td>
     </tr>