Add online feature retrieval integration test using the universal repo

[achals]

Signed-off-by: Achal Shah achals@gmail.com

What this PR does / why we need it:

Which issue(s) this PR fixes:

Fixes #

Does this PR introduce a user-facing change?:

NONE

[codecov-commenter]

Codecov Report

Merging #1783 (ec9fdd1) into master (351b913) will increase coverage by 0.32%.
The diff coverage is 100.00%.

@@            Coverage Diff             @@
##           master    #1783      +/-   ##
==========================================
+ Coverage   85.20%   85.53%   +0.32%     
==========================================
  Files          87       88       +1     
  Lines        6501     6656     +155     
==========================================
+ Hits         5539     5693     +154     
- Misses        962      963       +1     

Flag	Coverage Δ
integrationtests	85.45% <100.00%> (+0.33%)	⬆️
unittests	63.52% <26.22%> (-0.28%)	⬇️

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

Impacted Files	Coverage Δ
...ation/feature_repos/universal/data_sources/file.py	100.00% <ø> (ø)
...tegration/feature_repos/universal/feature_views.py	100.00% <ø> (ø)
...tegration/feature_repos/test_repo_configuration.py	100.00% <100.00%> (ø)
.../integration/online_store/test_universal_online.py	100.00% <100.00%> (ø)
sdk/python/feast/feature_view.py	87.05% <0.00%> (-0.72%)	⬇️
sdk/python/feast/feature_store.py	92.90% <0.00%> (-0.68%)	⬇️
.../tests/integration/scaffolding/test_repo_config.py	100.00% <0.00%> (ø)
sdk/python/feast/repo_config.py	92.96% <0.00%> (+0.34%)	⬆️
... and 2 more

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[adchia]

/lgtm

[adchia]

/lgtm

unintentional change requested

[feast-ci-bot]

[APPROVALNOTIFIER] This PR is APPROVED

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

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