feat: add ListMixin and implement Redis list operations

[oliverhaas]

No description provided.

[codecov]

Codecov Report

❌ Patch coverage is 21.93309% with 210 lines in your changes missing coverage. Please review.
✅ Project coverage is 37.0%. Comparing base (e0c234f) to head (0123ab3).

Files with missing lines	Patch %	Lines
tests/test_backend_lists.py	3.6%	135 Missing ⚠️
django_redis/client/mixins/lists.py	42.2%	20 Missing and 35 partials ⚠️
django_redis/cache.py	33.4%	20 Missing ⚠️

Additional details and impacted files

@@           Coverage Diff            @@
##           master    #802     +/-   ##
========================================
- Coverage    38.2%   37.0%   -1.1%     
========================================
  Files          48      50      +2     
  Lines        3727    3993    +266     
  Branches      301     336     +35     
========================================
+ Hits         1420    1476     +56     
- Misses       2006    2181    +175     
- Partials      301     336     +35     

Flag	Coverage Δ
mypy	37.0% <22.0%> (-1.1%)	⬇️

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