send python coverage to codecov, remove buildpulse which was not helping

[anshbansal]

Checklist

• The PR conforms to DataHub's Contributing Guideline (particularly Commit Message Format)
• Links to related issues (if applicable)
• Tests for the changes have been added/updated (if applicable)
• Docs related to the changes have been added/updated (if applicable). If a new feature has been added a Usage Guide has been added for the same.
• For any breaking change/potential downtime/deprecation/big changes an entry has been made in Updating DataHub

[codecov]

Codecov Report

❗ No coverage uploaded for pull request base (master@2ee6d4c). Click here to learn what that means.
Patch has no changes to coverable lines.

Additional details and impacted files

@@            Coverage Diff            @@
##             master     #213   +/-   ##
=========================================
  Coverage          ?   74.75%           
=========================================
  Files             ?      350           
  Lines             ?    35141           
  Branches          ?        0           
=========================================
  Hits              ?    26268           
  Misses            ?     8873           
  Partials          ?        0           

Flag	Coverage Δ
pytest-lint	∅ <0.00%> (?)
pytest-testIntegration	50.51% <0.00%> (?)
pytest-testIntegrationBatch1	36.25% <0.00%> (?)
pytest-testQuick	63.39% <0.00%> (?)
pytest-testSlowIntegration	32.71% <0.00%> (?)

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[anshbansal]

Got this so far at https://app.codecov.io/gh/acryldata/datahub/tree/aseem-send-coverage/ at 04e5507

Need to compare with a932f52 after latest run happens

[shirshanka]

Overall seems fine.. have a question about the ci flag

[shirshanka]

what does this flag do?

[anshbansal]

In case the code coverage fails to be sent this will fail this workflow

[hsheth2]

and job != lint