Added redis back to devDependencies

Author: mcollina

package.json

@@ -32,6 +32,7 @@
   },
   "dependencies": {
     "fastify-plugin": "^1.2.0",
-    "ioredis": "^4.0.0"
+    "ioredis": "^4.0.0",
+    "redis": "^2.8.0"
   }
 }