docs: add y-hsgw as a contributor for code, and test (#1014)

Author: allcontributors[bot]

.all-contributorsrc

@@ -718,6 +718,16 @@
         "test",
         "doc"
       ]
+    },
+    {
+      "login": "y-hsgw",
+      "name": "Yukihiro Hasegawa",
+      "avatar_url": "https://avatars.githubusercontent.com/u/49516827?v=4",
+      "profile": "https://github.com/y-hsgw",
+      "contributions": [
+        "code",
+        "test"
+      ]
     }
   ],
   "contributorsPerLine": 7,

README.md

@@ -552,6 +552,7 @@ 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/nostrorom"><img src="https://avatars.githubusercontent.com/u/49858211?v=4?s=100" width="100px;" alt="nostro"/><br /><sub><b>nostro</b></sub></a><br /><a href="https://github.com/testing-library/eslint-plugin-testing-library/commits?author=nostrorom" title="Code">💻</a></td>
       <td align="center" valign="top" width="14.28%"><a href="https://github.com/danielrentz"><img src="https://avatars.githubusercontent.com/u/5064304?v=4?s=100" width="100px;" alt="Daniel Rentz"/><br /><sub><b>Daniel Rentz</b></sub></a><br /><a href="https://github.com/testing-library/eslint-plugin-testing-library/commits?author=danielrentz" title="Documentation">📖</a></td>
       <td align="center" valign="top" width="14.28%"><a href="https://github.com/StyleShit"><img src="https://avatars.githubusercontent.com/u/32631382?v=4?s=100" width="100px;" alt="StyleShit"/><br /><sub><b>StyleShit</b></sub></a><br /><a href="https://github.com/testing-library/eslint-plugin-testing-library/commits?author=StyleShit" title="Code">💻</a> <a href="https://github.com/testing-library/eslint-plugin-testing-library/commits?author=StyleShit" title="Tests">⚠️</a> <a href="https://github.com/testing-library/eslint-plugin-testing-library/commits?author=StyleShit" title="Documentation">📖</a></td>
+      <td align="center" valign="top" width="14.28%"><a href="https://github.com/y-hsgw"><img src="https://avatars.githubusercontent.com/u/49516827?v=4?s=100" width="100px;" alt="Yukihiro Hasegawa"/><br /><sub><b>Yukihiro Hasegawa</b></sub></a><br /><a href="https://github.com/testing-library/eslint-plugin-testing-library/commits?author=y-hsgw" title="Code">💻</a> <a href="https://github.com/testing-library/eslint-plugin-testing-library/commits?author=y-hsgw" title="Tests">⚠️</a></td>
     </tr>
   </tbody>
 </table>