Move redux-saga-test-plan to devDependencies

package.json

@@ -73,7 +73,6 @@
     "redux": "4.0.1",
     "redux-devtools-extension": "^2.13.2",
     "redux-saga": "^1.1.3",
-    "redux-saga-test-plan": "^4.0.0-rc.3",
     "redux-thunk": "^2.3.0",
     "reselect": "^4.0.0",
     "uuid": "^8.1.0"
@@ -120,6 +119,7 @@
     "react-dev-utils": "^9.0.1",
     "react-dom": "^16.8.6",
     "redux-mock-store": "^1.5.1",
+    "redux-saga-test-plan": "^4.0.0-rc.3",
     "style-loader": "^0.23.1",
     "supertest": "^4.0.2",
     "terser-webpack-plugin": "^1.3.0",