Handle RESP3 sets as Python lists

[gerzse]

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Description of change

Although the RESP3 protocol defines the set data structure, sometimes the responses from the Redis server contain sets with nested maps, which cannot be represented in Python as sets with nested dicts, because dicts are not hashable.

Versions of HIREDIS before 3.0.0 would cause segmentation fault when parsing such responses. Starting with version 3.0.0 the problem was fixed, with the compromise that RESP3 sets are represented as Python lists.

The embedded RESP3 parser was so far trying to represent RESP3 sets as Python sets, if possible. Only when this was not possible it would switch to the list representation. Arguably this is not the best user experience, not knowing when you will get back a set or a list.

Upgrade the required hiredis-py version to be at least 3.0.0, and change the embedded parser to always represent RESP3 sets as lists. This way we get a consistent experience in all cases.

This is a breaking change.

Fixes #3074 and #3145

[kosuke-zhang]

Hi, when will this be released?

[ThiefMaster]

Can this please be fixed by making a release? Right now you get a (partially) broken combination of dependencies when you simply install redis[hiredis]. That should never happen. While people have to pin their transitive dependencies, the current state means that even in a new application where you add redis[hiredis] and then pin the dependencies, you get a broken combination, which can only fixed by adding an explicit pin for hiredis...

[vladvildanov]

@ThiefMaster Hi! New release planned for next week, we will include this