Bump mobx-react from 6.1.4 to 6.1.8 (#129)

Bumps [mobx-react](https://github.com/mobxjs/mobx-react) from 6.1.4 to 6.1.8.
- [Release notes](https://github.com/mobxjs/mobx-react/releases)
- [Changelog](https://github.com/mobxjs/mobx-react/blob/master/CHANGELOG.md)
- [Commits](https://github.com/mobxjs/mobx-react/compare/6.1.4...6.1.8)

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

Co-authored-by: dependabot-preview[bot] <27856297+dependabot-preview[bot]@users.noreply.github.com>

package.json

@@ -23,7 +23,7 @@
     "dotenv": "^8.2.0",
     "lodash": "^4.17.11",
     "mobx": "^5.15.4",
-    "mobx-react": "^6.1.4",
+    "mobx-react": "^6.1.8",
     "prop-types": "^15.6.2",
     "query-string": "^6.9.0",
     "react": "^16.13.1",