Update redis options parsing

[DvirDukhan]

What this PR does / why we need it:
The Redis connection string is a comma-separated string, where each additional parameter in addition to host and port is in the format key=value.
This proposal fixing the parsing in cases where the parameter values contain the = symbol, for example localhost:6379,password=my=password

Which issue(s) this PR fixes:

None

Does this PR introduce a user-facing change?:

NONE

[feast-ci-bot]

Hi @DvirDukhan. Thanks for your PR.

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[codecov-commenter]

Codecov Report

Merging #1704 (dabb549) into master (0d0492d) will increase coverage by 0.70%.
The diff coverage is 100.00%.

@@            Coverage Diff             @@
##           master    #1704      +/-   ##
==========================================
+ Coverage   82.75%   83.45%   +0.70%     
==========================================
  Files          76       76              
  Lines        6754     7291     +537     
==========================================
+ Hits         5589     6085     +496     
- Misses       1165     1206      +41     

Flag	Coverage Δ
integrationtests	83.24% <100.00%> (+0.57%)	⬆️
unittests	69.61% <17.64%> (-0.13%)	⬇️

Flags with carried forward coverage won't be shown. Click here to find out more.

Impacted Files	Coverage Δ
sdk/python/feast/infra/online_stores/redis.py	94.64% <100.00%> (+2.67%)	⬆️
sdk/python/tests/test_cli_redis.py	100.00% <100.00%> (ø)
...hon/tests/test_offline_online_store_consistency.py	91.86% <0.00%> (-8.14%)	⬇️
sdk/python/feast/feature_store.py	94.03% <0.00%> (-0.41%)	⬇️
sdk/python/feast/infra/online_stores/sqlite.py	97.59% <0.00%> (+1.20%)	⬆️
sdk/python/feast/entity.py	97.63% <0.00%> (+1.26%)	⬆️
sdk/python/feast/registry.py	81.29% <0.00%> (+1.36%)	⬆️
sdk/python/feast/infra/local.py	92.15% <0.00%> (+1.96%)	⬆️
sdk/python/tests/feast_serving_server.py	43.33% <0.00%> (+2.02%)	⬆️
... and 6 more

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[achals]

Thanks for the contribution @DvirDukhan! Looks good to me, do you mind fixing lint and adding a unit test, and then we can get this merged in?

[DvirDukhan]

@achals thanks for the review
sure, I will supply unit test soon

[achals]

@DvirDukhan you should be able to run make format to fix the linter failure

[DvirDukhan]

done, thanks

[achals]

/lgtm

[feast-ci-bot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: achals, DvirDukhan

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[achals]

/retest

[achals]

/retest