docs: add vasiliy-mikhailov as a contributor for test (#440)

* docs: update CONTRIBUTING.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

@@ -169,6 +169,15 @@
         "test",
         "question"
       ]
+    },
+    {
+      "login": "vasiliy-mikhailov",
+      "name": "Vasiliy Mikhailov",
+      "avatar_url": "https://avatars.githubusercontent.com/u/12772852?v=4",
+      "profile": "https://github.com/vasiliy-mikhailov",
+      "contributions": [
+        "test"
+      ]
     }
   ],
   "commitType": "docs"

CONTRIBUTING.md

@@ -154,6 +154,7 @@ For recognizing contributions, please follow [this documentation](https://allcon
     <tr>
       <td align="center" valign="top" width="16.66%"><a href="https://github.com/arvy"><img src="https://avatars.githubusercontent.com/u/4861274?v=4?s=50" width="50px;" alt="Arvydas Jonusonis"/><br /><sub><b>Arvydas Jonusonis</b></sub></a><br /><a href="#userTesting-arvy" title="User Testing">📓</a> <a href="https://github.com/datastax/cassandra-data-migrator/commits?author=arvy" title="Documentation">📖</a></td>
       <td align="center" valign="top" width="16.66%"><a href="https://blog.alteroot.org"><img src="https://avatars.githubusercontent.com/u/3627062?v=4?s=50" width="50px;" alt="Skunnyk"/><br /><sub><b>Skunnyk</b></sub></a><br /><a href="https://github.com/datastax/cassandra-data-migrator/issues?q=author%3ASkunnyk" title="Bug reports">🐛</a> <a href="https://github.com/datastax/cassandra-data-migrator/commits?author=Skunnyk" title="Tests">⚠️</a> <a href="#question-Skunnyk" title="Answering Questions">💬</a></td>
+      <td align="center" valign="top" width="16.66%"><a href="https://github.com/vasiliy-mikhailov"><img src="https://avatars.githubusercontent.com/u/12772852?v=4?s=50" width="50px;" alt="Vasiliy Mikhailov"/><br /><sub><b>Vasiliy Mikhailov</b></sub></a><br /><a href="https://github.com/datastax/cassandra-data-migrator/commits?author=vasiliy-mikhailov" title="Tests">⚠️</a></td>
     </tr>
   </tbody>
 </table>