Bump react-helmet from 5.2.1 to 6.1.0

Bumps [react-helmet](https://github.com/nfl/react-helmet) from 5.2.1 to 6.1.0.
- [Release notes](https://github.com/nfl/react-helmet/releases)
- [Changelog](https://github.com/nfl/react-helmet/blob/master/CHANGELOG.md)
- [Commits](https://github.com/nfl/react-helmet/commits/6.1.0)

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

package.json

@@ -13,7 +13,7 @@
     "jquery": "^3.4.1",
     "react": "^16.12.0",
     "react-dom": "^16.12.0",
-    "react-helmet": "^5.2.1",
+    "react-helmet": "^6.1.0",
     "react-loader-spinner": "^3.1.5",
     "react-multi-carousel": "^2.5.0",
     "react-router-dom": "^5.1.2",