chore(deps-dev): bump @types/react-dom from 16.8.4 to 16.9.1 (#36)

Bumps [@types/react-dom](https://github.com/DefinitelyTyped/DefinitelyTyped/tree/HEAD/types/react-dom) from 16.8.4 to 16.9.1.
- [Release notes](https://github.com/DefinitelyTyped/DefinitelyTyped/releases)
- [Commits](https://github.com/DefinitelyTyped/DefinitelyTyped/commits/HEAD/types/react-dom)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

package.json

@@ -29,7 +29,7 @@
     "@types/node": "^12.7.9",
     "@types/prop-types": "^15.7.3",
     "@types/react": "^16.9.5",
-    "@types/react-dom": "^16.8.0",
+    "@types/react-dom": "^16.9.1",
     "@types/sinon": "^7.5.0",
     "axe-core": "^3.3.2",
     "chai": "^4.2.0",

yarn.lock

@@ -848,10 +848,10 @@
   resolved "https://registry.yarnpkg.com/@types/q/-/q-1.5.2.tgz#690a1475b84f2a884fd07cd797c00f5f31356ea8"
   integrity sha512-ce5d3q03Ex0sy4R14722Rmt6MT07Ua+k4FwDfdcToYJcMKNtRVQvJ6JCAPdAmAnbRb6CsX6aYb9m96NGod9uTw==
 
-"@types/react-dom@^16.8.0":
-  version "16.8.4"
-  resolved "https://registry.yarnpkg.com/@types/react-dom/-/react-dom-16.8.4.tgz#7fb7ba368857c7aa0f4e4511c4710ca2c5a12a88"
-  integrity sha512-eIRpEW73DCzPIMaNBDP5pPIpK1KXyZwNgfxiVagb5iGiz6da+9A5hslSX6GAQKdO7SayVCS/Fr2kjqprgAvkfA==
+"@types/react-dom@^16.9.1":
+  version "16.9.1"
+  resolved "https://registry.yarnpkg.com/@types/react-dom/-/react-dom-16.9.1.tgz#79206237cba9532a9f870b1cd5428bef6b66378c"
+  integrity sha512-1S/akvkKr63qIUWVu5IKYou2P9fHLb/P2VAwyxVV85JGaGZTcUniMiTuIqM3lXFB25ej6h+CYEQ27ERVwi6eGA==
   dependencies:
     "@types/react" "*"