client@1.6.0

Enhancements

• add support for all hash field expiration commands by @sjpotter in https://github.com/redis/node-redis/pull/2787
• add CLIENT KILL MAXAGE support by @sjpotter in https://github.com/redis/node-redis/pull/2761
• add HSCAN NOVALUES support @gerzse in https://github.com/redis/node-redis/pull/2711