Fix flaky tests (test_online_store_cleanup & test_feature_get_online_features_types_match)

[pyalex]

Signed-off-by: pyalex moskalenko.alexey@gmail.com

What this PR does / why we need it:

Several issues addressed in this PR:

1. Test environment time range (start and end dates) was instantiated once on tests start. Which could be an issue when tests are started at the end of the hour and then continued to the next hour. So there will be difference between generated datasets boundaries and environment start and end timestamps.
2. In test_online_store_cleanup some online stores (like dynamo) can have eventual consistency of schema. So when table was deleted it might need some time before it can be recreated.
3. Bug with inferring feature type when all values are empty list.

Which issue(s) this PR fixes:

Fixes #

Does this PR introduce a user-facing change?:

NONE

[codecov-commenter]

Codecov Report

Merging #2276 (105d014) into master (bb676f2) will increase coverage by 27.46%.
The diff coverage is 84.21%.

@@             Coverage Diff             @@
##           master    #2276       +/-   ##
===========================================
+ Coverage   58.60%   86.06%   +27.46%     
===========================================
  Files         116      116               
  Lines        9810     9820       +10     
===========================================
+ Hits         5749     8452     +2703     
+ Misses       4061     1368     -2693     

Flag	Coverage Δ
integrationtests	74.78% <84.21%> (?)
unittests	58.55% <26.31%> (-0.05%)	⬇️

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

Impacted Files	Coverage Δ
sdk/python/feast/type_map.py	68.51% <66.66%> (+28.39%)	⬆️
.../integration/online_store/test_universal_online.py	97.17% <80.00%> (+82.17%)	⬆️
...ts/integration/feature_repos/repo_configuration.py	94.44% <100.00%> (+49.07%)	⬆️
...s/integration/registration/test_universal_types.py	98.78% <100.00%> (+63.59%)	⬆️
sdk/python/feast/data_source.py	60.55% <0.00%> (+0.39%)	⬆️
sdk/python/feast/infra/online_stores/sqlite.py	95.27% <0.00%> (+1.57%)	⬆️
sdk/python/feast/errors.py	70.51% <0.00%> (+3.20%)	⬆️
sdk/python/feast/online_response.py	77.77% <0.00%> (+3.70%)	⬆️
sdk/python/feast/feature.py	90.24% <0.00%> (+4.87%)	⬆️
sdk/python/feast/infra/provider.py	89.16% <0.00%> (+5.00%)	⬆️
... and 65 more

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[adchia]

/lgtm

[adchia]

non blocking, but kind of confusing why this ensures we infer from all empty values

[feast-ci-bot]

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

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