fix(package): update react-redux to version 7.1.2

Closes #6

Author: greenkeeper[bot]

package.json

@@ -9,7 +9,7 @@
     "normalizr": "^3.3.0",
     "react": "^16.6.0",
     "react-dom": "^16.6.0",
-    "react-redux": "^6.0.0",
+    "react-redux": "^7.1.2",
     "redux": "^4.0.1",
     "redux-logger": "^3.0.6",
     "redux-saga": "^0.16.2",