Upgrade to latest version of Redis#37

I am attempting to use v0.27.0 of redis, since 0.25.0 doesn't let you pass username and password when connecting, but doing so leads to a type error when you attempt to pass the `Redis` instance to the `RedisStore` constructor: ``` Argument of type 'import("https://deno.land/x/[email protected]/redis").Redis' is not assignable to parameter of type 'import("https://deno.land/x/[email protected]/redis").Redis'. The types returned by 'sendCommand(...)' are incompatible between these types. Type 'Promise<import("https://deno.land/x/[email protected]/protocol/types").RedisReply>' is not assignable to type 'Promise<import("https://deno.land/x/[email protected]/protocol/types").RedisReply>'. Type 'import("https://deno.land/x/[email protected]/protocol/types").RedisReply' is not assignable to type 'import("https://deno.land/x/[email protected]/protocol/types").RedisReply'. Property 'type' is missing in type 'RedisReply' but required in type 'BulkReply'. ```