Update redis dependency to resolve high severity audit issue

[supersime]

Hi @freeall ... I wonder if there is a chance to get your library updated to use latest version of redis client library? (as of writing, 4.6.7).

When I run npm audit I get the following high severity issue:

redis  2.6.0 - 3.1.0
Severity: high
Node-Redis potential exponential regex in monitor mode - https://github.com/advisories/GHSA-35q2-47q7-3pc3
fix available via `npm audit fix --force`
Will install [email protected], which is a breaking change
node_modules/redis-eventemitter/node_modules/redis
  redis-eventemitter  >=2.0.1
  Depends on vulnerable versions of redis
  node_modules/redis-eventemitter

redis-eventemitter has a dependency for redis: ^2.6.3 which is vulnerable to this advisory issue.

Is there a chance you could update the library to use the newest redis module? Cheers!