chore(deps): update dependency @types/react-dom to v16.0.9

Author: renovate-bot

package-lock.json

@@ -42,7 +42,7 @@
     "@types/power-assert": "1.5.0",
     "@types/prop-types": "15.5.6",
     "@types/react": "16.4.2",
-    "@types/react-dom": "16.0.8",
+    "@types/react-dom": "16.0.9",
     "assert-rejects": "0.1.1",
     "gh-pages": "1.2.0",
     "jscpd": "0.6.25",