feat: Upgrade Redis 3 to 4 (#8293)

BREAKING CHANGE: This release upgrades to Redis 4; if you are using the Redis cache adapter with Parse Server then this is a breaking change as the Redis client options have changed; see the [Redis migration guide](https://github.com/redis/node-redis/blob/redis%404.0.0/docs/v3-to-v4.md) for more details (#8293)

package.json

@@ -49,7 +49,7 @@
     "pg-monitor": "1.5.0",
     "pg-promise": "10.12.1",
     "pluralize": "8.0.0",
-    "redis": "3.1.2",
+    "redis": "4.0.6",
     "semver": "7.3.8",
     "subscriptions-transport-ws": "0.11.0",
     "tv4": "1.3.0",