Add support for SINTERCARD

[dvora-h]

Pull Request check-list

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• Does $ tox pass with this change (including linting)?
• Do the CI tests pass with this change (enable it first in your forked repo and wait for the github action build to finish)?
• Is the new or changed code fully tested?
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Description of change

closes #1808

[codecov-commenter]

Codecov Report

Merging #1859 (5ad88f5) into master (15f315a) will increase coverage by 0.03%.
The diff coverage is 100.00%.

@@            Coverage Diff             @@
##           master    #1859      +/-   ##
==========================================
+ Coverage   93.60%   93.63%   +0.03%     
==========================================
  Files          76       76              
  Lines       16214    16225      +11     
==========================================
+ Hits        15177    15193      +16     
+ Misses       1037     1032       -5     

Impacted Files	Coverage Δ
redis/commands/core.py	89.96% <100.00%> (+0.02%)	⬆️
tests/test_commands.py	99.39% <100.00%> (+<0.01%)	⬆️
tests/test_cluster.py	98.66% <0.00%> (+0.12%)	⬆️
tests/conftest.py	90.99% <0.00%> (+1.35%)	⬆️

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[chayim]

args = [numkeys, *x, "LIMIT", limit]

[chayim]

WDYT about the args change?