Update dependency redis to v3

Created by: renovate[bot]

This PR contains the following updates:

Package	Type	Update	New value	References	Sourcegraph
redis	dependencies	major	^3.0.2	source

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Release Notes

NodeRedis/node-redis

v3.0.2

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v3.0.1

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v3.0.0

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This version is mainly a release to distribute all the unreleased changes on master since 2017 and additionally removes a lot of old deprecated features and old internals in preparation for an upcoming modernization refactor (v4).

Breaking Changes

• Dropped support for Node.js < 6
• Dropped support for hiredis (no longer required)
• Removed previously deprecated drain event
• Removed previously deprecated idle event
• Removed previously deprecated parser option
• Removed previously deprecated max_delay option
• Removed previously deprecated max_attempts option
• Removed previously deprecated socket_no_delay option

Bug Fixes

• Removed development files from published package (#​1370)
• Duplicate function now allows db param to be passed (#​1311)

Features

• Upgraded to latest redis-commands package
• Upgraded to latest redis-parser package, v3.0.0, which brings performance improvements
• Replaced double-ended-queue with denque, which brings performance improvements
• Add timestamps to debug traces
• Add socket_initial_delay option for socket.setKeepAlive (#​1396)
• Add support for rediss protocol in url (#​1282)

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