Update redis requirement from ~> 4.1 to >= 4.1, < 6.0 in /ruby

[dependabot]

Updates the requirements on redis to permit the latest version.

Changelog

Sourced from redis's changelog.

5.0.0

• Eagerly and strictly cast Integer and Float parameters.
• Allow to call subscribe, unsubscribe, psubscribe and punsubscribe from a subscribed client. See #1131.
• Use MD5 for hashing server nodes in Redis::Distributed. This should improve keys distribution among servers. See #1089.
• Changed sadd and srem to now always return an Integer.
• Added sadd? and srem? which always return a Boolean.
• Added support for IDLE paramter in xpending.
• Cluster support has been moved to a redis-clustering companion gem.
• select no longer record the current database. If the client has to reconnect after select was used, it will reconnect to the original database.
• Better support Float timeout in blocking commands. See #977.
• Removed positional timeout in blocking commands (BLPOP, etc). Timeout now must be passed as an option: r.blpop("key", timeout: 2.5)
• Removed logger option.
• Removed reconnect_delay_max and reconnect_delay, you can pass precise sleep durations to reconnect_attempts instead.
• Require Ruby 2.5+.
• Removed the deprecated queue and commit methods. Use pipelined instead.
• Removed the deprecated Redis::Future#==.
• Removed the deprecated pipelined and multi signature. Commands now MUST be called on the block argument, not the original redis instance.
• Removed Redis.current. You shouldn't assume there is a single global Redis connection, use a connection pool instead, and libaries using Redis should accept a Redis instance (or connection pool) as a config. E.g. MyLibrary.redis = Redis.new(...).
• Removed the synchrony driver.
• Removed Redis.exists_returns_integer, it's now always enabled.

4.8.0

• Introduce sadd? and srem? as boolean returning versions of sadd and srem.
• Deprecate sadd and srem returning a boolean when called with a single argument. To enable the redis 5.0 behavior you can set Redis.sadd_returns_boolean = true.
• Deprecate passing timeout as a positional argument in blocking commands (brpop, blop, etc).

4.7.1

• Gracefully handle OpenSSL 3.0 EOF Errors (OpenSSL::SSL::SSLError: SSL_read: unexpected eof while reading). See #1106 This happens frequently on heroku-22.

4.7.0

• Support single endpoint architecture with SSL/TLS in cluster mode. See #1086.
• zrem and zadd act as noop when provided an empty list of keys. See #1097.
• Support IPv6 URLs.
• Add Redis#with for better compatibility with connection_pool usage.
• Fix the block form of multi called inside pipelined. Previously the MUTLI/EXEC wouldn't be sent. See #1073.

4.6.0

• Deprecate Redis.current.
• Deprecate calling commands on Redis inside Redis#pipelined. See #1059.

  redis.pipelined do
    redis.get("key")

... (truncated)

Commits

• 667b000 Release 5.0.0
• 6ddf145 Merge pull request #1139 from espen/patch-1
• 5296545 make connection pool reference clickable
• acb5989 Merge pull request #1138 from wintersolutions/patch-1
• 4a8f9af Fix small typo in README.md
• 1f09bfa Merge pull request #1136 from fatkodima/rpop-lpop-missing-key
• cae39dd Add tests for lpop/rpop with the missing key
• 03b060f Update CHANGELOG
• 63befa5 Update CHANGELOG
• 13566c3 Merge pull request #1133 from casperisfine/integer-casting
• Additional commits viewable in compare view

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