Added retry mechanism on socket timeouts when connecting to the server

[barshaul]

Pull Request check-list

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• Do the CI tests pass with this change (enable it first in your forked repo and wait for the github action build to finish)?
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Description of change

The current option to add retry object for timeouts works only at the execute command level and do not apply to the socket timeouts that may occur when trying to connect to the server.
Added support for retrying on timeout to connection::connect function.

Closes #1833

[codecov-commenter]

Codecov Report

Merging #1895 (8f6d4d4) into master (90295ea) will increase coverage by 0.03%.
The diff coverage is 100.00%.

@@            Coverage Diff             @@
##           master    #1895      +/-   ##
==========================================
+ Coverage   92.97%   93.01%   +0.03%     
==========================================
  Files          76       76              
  Lines       16389    16425      +36     
==========================================
+ Hits        15237    15277      +40     
+ Misses       1152     1148       -4     

Impacted Files	Coverage Δ
redis/connection.py	87.02% <100.00%> (+0.24%)	⬆️
redis/retry.py	100.00% <100.00%> (ø)
tests/test_connection.py	98.87% <100.00%> (+0.72%)	⬆️
tests/test_cluster.py	98.28% <0.00%> (+0.12%)	⬆️

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[chayim]

So happy :D