Add LMPOP

[Palladinium]

Currently failing due to needing redis-rb v5 (see also #281 and #293)

[sds]

If you are interested in carrying this further, I would welcome an upgrade of redis-rb to v5. In any case, really appreciate you putting up a draft PR.

[Palladinium]

I'll wait a week or two to see if #293 progresses, if not I'll take a stab at updating to v5 from scratch myself

[sds]

Shout out to @hieuk09 who submitted support for redis-rb v5 in #314.

You should be able to pick this up again after a rebase.

[Palladinium]

A bunch of tests fail on my local environment, and also a bunch of CI checks fail too. They all seem unrelated to the LMPOP changes, so I'm not sure what's up. Do you have any ideas?

[sds]

@Palladinium the tests I see failing are all on Redis 6.2 and mention lmpop, so they seem relevant?

Lastly, the Overcommit failure seems like it would be solved by adding base64 to the Gemfile.

[Palladinium]

Ah of course, LMPOP was only introduced in Redis v7, so those failures make sense

[sds]

Sorry, I forgot lmpop is new as of Redis 7. Can you update the tests to be skipped for Redis 6.2?

[sds]

Thank you for the quick turnaround! Released in 0.48.0