SG-38126 Review and Fixups CI Tests and Code Coverage

[julien-lang]

Changes align with shotgunsoftware/sg-jira-bridge#103 and shotgunsoftware/tk-ci-tools#73.

Fixups

• Fix a code coverage issue regarding the certifi third party library
  • The certifi library was included in the coverage result despites being listed in the .coveragerc ignore list because of a typo
• Fix Coverage badge in readme
  • was targetinng old coverall.io service that we don'T use since we move to Azure Pipelines
  • Now targets codecov.io

Pytests

Consolidate test structure around pytest.

• Remove useless driver script. It's just as easy to launch pytest.
• Remove outdated information about nose
• Rename the PIP requirement files from ci_requirements.txt to requirements.txt

Azure Pipeline CI Improvements

• Define job parameter in the "formal" form without a default value to make sure CI fails if the parameters are not provided
• Simplify the code coverage upload mechanism to codecov.io
• Drop pytest-azurepipeline
  • This package was prviously used to automatically upload test report and code coverage to Azure Pipelines which is very convenient.
  • Unfortunately, the package does not seem to be maintained anymore. And it is using outdated versions the PublishTestResults and PublishCodeCoverageResults Azure Pipeline tasks.

[Copilot]

Pull request overview

This PR updates the code coverage tooling from Coveralls to Codecov, correcting configuration issues and removing deprecated dependencies.

Changes:

• Migrated coverage reporting from Coveralls to Codecov
• Replaced pytest-coverage with pytest-cov and removed the coveralls package
• Fixed typo in coverage configuration

Reviewed changes

Copilot reviewed 3 out of 3 changed files in this pull request and generated no comments.

File	Description
tests/ci_requirements.txt	Removed coveralls dependency and replaced pytest-coverage with pytest-cov
README.md	Updated coverage badge to point to Codecov instead of Coveralls
.coveragerc	Fixed typo in certifi directory name and updated configuration comment

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[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 78.66%. Comparing base (a5c32bc) to head (9ec4bbe).

Additional details and impacted files

@@ Coverage Diff @@## master #439 +/- ## ========================================== + Coverage 77.07% 78.66% +1.59%  ========================================== Files 10 7 -3 Lines 1880 1842 -38 ========================================== Hits 1449 1449 + Misses 431 393 -38 

Flag	Coverage Δ
Linux	78.66% <ø> (?)
Python-3.10	78.61% <ø> (?)
Python-3.11	78.61% <ø> (?)
Python-3.13	78.61% <ø> (?)
Python-3.9	78.59% <ø> (?)
Windows	78.75% <ø> (?)
macOS	78.66% <ø> (?)

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[Copilot]

Pull request overview

Copilot reviewed 7 out of 7 changed files in this pull request and generated no new comments.

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