fix(deps): update react-router monorepo to v5.3.4

Author: renovate[bot]

package-lock.json

@@ -56,8 +56,8 @@
     "react": "16.14.0",
     "react-dom": "16.14.0",
     "react-redux": "7.2.9",
-    "react-router": "5.2.1",
-    "react-router-dom": "5.3.0",
+    "react-router": "5.3.4",
+    "react-router-dom": "5.3.4",
     "redux": "4.2.0",
     "regenerator-runtime": "0.13.10",
     "tinymce": "5.10.6"