Fix flaky connection to redshift data API

[achals]

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

What this PR does / why we need it:

I've seen this error very often:

E           botocore.exceptions.ConnectionClosedError: Connection was closed before we received a valid response from endpoint URL: "https://redshift-data.us-west-2.amazonaws.com/".

Examples:
https://github.com/feast-dev/feast/pull/1833/checks?check_run_id=3507137476
https://github.com/feast-dev/feast/runs/3490830039?check_suite_focus=true
https://github.com/feast-dev/feast/runs/3490830012?check_suite_focus=true

Which issue(s) this PR fixes:

Fixes #

Does this PR introduce a user-facing change?:

Retry submitting queries to redshift on connection errors.

[codecov-commenter]

Codecov Report

Merging #1834 (fec7a87) into master (9dc9e60) will decrease coverage by 0.56%.
The diff coverage is 100.00%.

@@            Coverage Diff             @@
##           master    #1834      +/-   ##
==========================================
- Coverage   84.60%   84.04%   -0.57%     
==========================================
  Files          94       90       -4     
  Lines        6946     6762     -184     
==========================================
- Hits         5877     5683     -194     
- Misses       1069     1079      +10     

Flag	Coverage Δ
integrationtests	83.96% <100.00%> (-0.31%)	⬇️
unittests	63.57% <100.00%> (+0.20%)	⬆️

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

Impacted Files	Coverage Δ
sdk/python/feast/infra/utils/aws_utils.py	88.46% <100.00%> (+0.11%)	⬆️
...thon/feast/infra/offline_stores/redshift_source.py	81.60% <0.00%> (-2.30%)	⬇️
sdk/python/feast/infra/online_stores/redis.py	92.85% <0.00%> (-1.79%)	⬇️
sdk/python/feast/errors.py	67.96% <0.00%> (-1.43%)	⬇️
sdk/python/feast/cli.py	42.58% <0.00%> (-1.38%)	⬇️
...python/feast/infra/offline_stores/offline_store.py	82.92% <0.00%> (-1.08%)	⬇️
sdk/python/feast/infra/offline_stores/file.py	96.46% <0.00%> (-0.69%)	⬇️
sdk/python/feast/infra/provider.py	88.13% <0.00%> (-0.66%)	⬇️
sdk/python/feast/infra/offline_stores/redshift.py	90.09% <0.00%> (-0.21%)	⬇️
sdk/python/feast/feature_store.py	92.96% <0.00%> (-0.19%)	⬇️
... and 9 more

---

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[adchia]

/lgtm

[feast-ci-bot]

[APPROVALNOTIFIER] This PR is APPROVED

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

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• OWNERS [achals,adchia]

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