Add current directory in sys path for CLI commands that might depend on custom providers

[MattDelac]

What this PR does / why we need it:
Only feast apply works with custom providers. Other CLI commands that depend on the provider don't work with custom ones.
This is because the current directory is append to the SYS PATH only during feast apply

Which issue(s) this PR fixes:

Fixes #1589

Does this PR introduce a user-facing change?:

Append current directory in sys path for all CLI commands that depend on a provider

[feast-ci-bot]

Hi @MattDelac. Thanks for your PR.

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[codecov-commenter]

Codecov Report

Merging #1594 (bcd0e65) into master (62f826b) will decrease coverage by 0.03%.
The diff coverage is 20.00%.

@@            Coverage Diff             @@
##           master    #1594      +/-   ##
==========================================
- Coverage   83.59%   83.55%   -0.04%     
==========================================
  Files          65       65              
  Lines        5755     5760       +5     
==========================================
+ Hits         4811     4813       +2     
- Misses        944      947       +3     

Flag	Coverage Δ
integrationtests	83.48% <20.00%> (-0.06%)	⬇️
unittests	77.34% <20.00%> (-0.04%)	⬇️

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

Impacted Files	Coverage Δ
sdk/python/feast/repo_operations.py	32.16% <ø> (+0.16%)	⬆️
sdk/python/feast/cli.py	45.27% <20.00%> (-0.51%)	⬇️

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[woop]

/ok-to-test

[woop]

/kind bug

[woop]

@MattDelac btw there is a fix for the flaky test over here #1593

[woop]

@MattDelac I think it may be possible to just use https://github.com/feast-dev/feast/pull/1594/files#diff-cc33a5e7afa90467a37c11f60b2a380bd86af97524300ca6484a0373e2f00cb6R70 so that we don't need to append in multiple places. Also, I think we need to support remote repos using the -c flag, right?

[MattDelac]

I think it may be possible to just use https://github.com/feast-dev/feast/pull/1594/files#diff-cc33a5e7afa90467a37c11f60b2a380bd86af97524300ca6484a0373e2f00cb6R70 so that we don't need to append in multiple places.

Yes I put it in cli_check_repo() that is called by all CLI commands

Also, I think we need to support remote repos using the -c flag, right?

Sounds like out of topic and related to #1556 no ? Unsure I understand your point here

[MattDelac]

@woop This PR is ready for a final review

[feast-ci-bot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: MattDelac, woop

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[woop]

/lgtm