Migrate Integration Tests

[jeff-hernandez]

The integration tests will be added as a GitHub Action. We'll need to add secrets in the repository settings for PP_K to run premium primitive tests.

[CLAassistant]

All committers have signed the CLA.

[codecov]

Codecov Report

Merging #1226 (bd8730f) into main (78cf986) will decrease coverage by 0.29%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##             main    #1226      +/-   ##
==========================================
- Coverage   98.63%   98.34%   -0.30%     
==========================================
  Files         134      134              
  Lines       14337    14419      +82     
==========================================
+ Hits        14142    14180      +38     
- Misses        195      239      +44     

Impacted Files	Coverage Δ
featuretools/entityset/relationship.py	94.18% <0.00%> (-4.54%)	⬇️
featuretools/primitives/base/primitive_base.py	96.34% <0.00%> (-3.66%)	⬇️
featuretools/tests/conftest.py	96.61% <0.00%> (-3.39%)	⬇️
featuretools/synthesis/encode_features.py	93.75% <0.00%> (-2.31%)	⬇️
featuretools/entityset/entity.py	94.33% <0.00%> (-2.02%)	⬇️
...eaturetools/tests/entityset_tests/test_plotting.py	98.36% <0.00%> (-1.64%)	⬇️
featuretools/tests/entityset_tests/test_es.py	98.81% <0.00%> (-1.19%)	⬇️
featuretools/demo/flight.py	94.93% <0.00%> (-1.17%)	⬇️
featuretools/feature_base/feature_base.py	97.28% <0.00%> (-0.66%)	⬇️
...uretools/tests/entityset_tests/test_es_metadata.py	99.40% <0.00%> (-0.60%)	⬇️
... and 8 more

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[rwedge]

Should this PR also remove the circleci config files?

[jeff-hernandez]

Should this PR also remove the circleci config files?

I think it'd be easier to update the branch protection rules by removing circleci in a separate PR.

[rwedge]

Looks good!