Add s3-deploy dep to dev

frontend/package.json

@@ -10,7 +10,6 @@
   "dependencies": {
     "core-js": "^3.3.2",
     "vue": "^2.6.10",
-    "vue-cli-plugin-s3-deploy": "^3.0.0",
     "vue-router": "^3.1.3",
     "vuex": "^3.0.1"
   },
@@ -21,6 +20,7 @@
     "@vue/cli-plugin-vuex": "^4.0.5",
     "@vue/cli-service": "^4.0.0",
     "@vue/eslint-config-standard": "^4.0.0",
+    "vue-cli-plugin-s3-deploy": "^3.0.0",
     "babel-eslint": "^10.0.3",
     "eslint": "^5.16.0",
     "eslint-plugin-vue": "^5.0.0",