fix: upgrade redis from 4.0.4 to 4.0.6 (#92)

Snyk has created this PR to upgrade redis from 4.0.4 to 4.0.6.

See this package in npm:
https://www.npmjs.com/package/redis

See this project in Snyk:
https://app.snyk.io/org/0x77dev/project/5f7b3e90-78e5-4a06-96b8-03b8797499e5?utm_source=github&utm_medium=referral&page=upgrade-pr

Co-authored-by: snyk-bot <[email protected]>

Author: 0x77dev

packages/relay/package.json

@@ -15,7 +15,7 @@
     "mercurius": "9.3.6",
     "nexus": "1.3.0",
     "prom-client": "14.0.1",
-    "redis": "4.0.4",
+    "redis": "4.0.6",
     "socket.io": "4.4.1",
     "wrtc": "^0.4.7"
   },