Bump react-dom from 16.8.5 to 16.8.6

Bumps [react-dom](https://github.com/facebook/react/tree/HEAD/packages/react-dom) from 16.8.5 to 16.8.6.
- [Release notes](https://github.com/facebook/react/releases)
- [Changelog](https://github.com/facebook/react/blob/master/CHANGELOG.md)
- [Commits](https://github.com/facebook/react/commits/v16.8.6/packages/react-dom)

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

package.json

@@ -7,7 +7,7 @@
   "dependencies": {
     "lodash.samplesize": "^4.2.0",
     "react": "^16.8.6",
-    "react-dom": "^16.8.5",
+    "react-dom": "^16.8.6",
     "react-ga": "^2.5.7",
     "react-scripts": "2.1.8",
     "react-use": "^7.0.1",

yarn.lock

@@ -8072,15 +8072,15 @@ react-dev-utils@^8.0.0:
     strip-ansi "5.0.0"
     text-table "0.2.0"
 
-react-dom@^16.8.5:
-  version "16.8.5"
-  resolved "https://registry.yarnpkg.com/react-dom/-/react-dom-16.8.5.tgz#b3e37d152b49e07faaa8de41fdf562be3463335e"
-  integrity sha512-VIEIvZLpFafsfu4kgmftP5L8j7P1f0YThfVTrANMhZUFMDOsA6e0kfR6wxw/8xxKs4NB59TZYbxNdPCDW34x4w==
+react-dom@^16.8.6:
+  version "16.8.6"
+  resolved "https://registry.yarnpkg.com/react-dom/-/react-dom-16.8.6.tgz#71d6303f631e8b0097f56165ef608f051ff6e10f"
+  integrity sha512-1nL7PIq9LTL3fthPqwkvr2zY7phIPjYrT0jp4HjyEQrEROnw4dG41VVwi/wfoCneoleqrNX7iAD+pXebJZwrwA==
   dependencies:
     loose-envify "^1.1.0"
     object-assign "^4.1.1"
     prop-types "^15.6.2"
-    scheduler "^0.13.5"
+    scheduler "^0.13.6"
 
 react-error-overlay@^5.1.4:
   version "5.1.4"