unpin boto dependency in setup

[fengyu05]

What this PR does / why we need it:

The feast[aws] pin boto3 to 1.17.* which create forward compatibles issue.
Removing the pin to undo the issue.

Which issue(s) this PR fixes:

Fixes #

Does this PR introduce a user-facing change?:

Unpin dependency on boto3

[feast-ci-bot]

Hi @fengyu05. Thanks for your PR.

I'm waiting for a feast-dev member to verify that this patch is reasonable to test. If it is, they should reply with /ok-to-test on its own line. Until that is done, I will not automatically test new commits in this PR, but the usual testing commands by org members will still work. Regular contributors should join the org to skip this step.

Once the patch is verified, the new status will be reflected by the ok-to-test label.

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[achals]

/ok-to-test

[codecov-commenter]

Codecov Report

Merging #2168 (aa3245c) into master (b8daefa) will decrease coverage by 0.01%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##           master    #2168      +/-   ##
==========================================
- Coverage   84.58%   84.57%   -0.02%     
==========================================
  Files         102      102              
  Lines        8175     8175              
==========================================
- Hits         6915     6914       -1     
- Misses       1260     1261       +1     

Flag	Coverage Δ
integrationtests	74.32% <ø> (-0.30%)	⬇️
unittests	58.71% <ø> (ø)

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

Impacted Files	Coverage Δ
.../integration/online_store/test_universal_online.py	97.67% <0.00%> (-0.47%)	⬇️

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[achals]

/lgtm

[feast-ci-bot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: achals, fengyu05

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• OWNERS [achals]

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