requested_features is passed to online_read from passthrough_provider

[aurobindoc]

What this PR does / why we need it:
OnlineStore.online_read() has a parameter requested_features. Similarly, PassthroughProvider.online_read() also has a parameter requested_features.
PassthroughProvider.online_read() calls OnlineStore.online_read() but doesn't pass on the requested_features variable.
In this PR, the requested_features variable is passed on to OnlineStore.online_read()

Which issue(s) this PR fixes:
Fixes #2106

Does this PR introduce a user-facing change?:
None

requested_features is passed to online_read from passthrough_provider

[feast-ci-bot]

Hi @aurobindoc. Thanks for your PR.

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[achals]

/ok-to-test

[codecov-commenter]

Codecov Report

Merging #2107 (b5202df) into master (2d3cea1) will decrease coverage by 0.01%.
The diff coverage is 100.00%.

@@            Coverage Diff             @@
##           master    #2107      +/-   ##
==========================================
- Coverage   83.53%   83.51%   -0.02%     
==========================================
  Files         100      100              
  Lines        8088     8088              
==========================================
- Hits         6756     6755       -1     
- Misses       1332     1333       +1     

Flag	Coverage Δ
integrationtests	73.94% <100.00%> (-0.02%)	⬇️
unittests	57.99% <100.00%> (ø)

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

Impacted Files	Coverage Δ
sdk/python/feast/infra/passthrough_provider.py	100.00% <100.00%> (ø)
sdk/python/feast/infra/utils/aws_utils.py	84.05% <0.00%> (-1.45%)	⬇️
.../integration/online_store/test_universal_online.py	98.13% <0.00%> (+0.46%)	⬆️

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[felixwang9817]

/lgtm

[feast-ci-bot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: aurobindoc, felixwang9817

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