fix(package): update react-redux to version 7.0.3

Closes #239

Author: greenkeeper[bot]

package.json

@@ -64,7 +64,7 @@
     "react-css-modules": "^4.7.1",
     "react-dom": "^16.0.0",
     "react-dropzone": "^4.2.5",
-    "react-redux": "^5.0.6",
+    "react-redux": "^7.0.3",
     "react-router-dom": "^4.2.2",
     "react-router-redux": "^5.0.0-alpha.6",
     "redux": "^3.7.2",