ci: update parallelism of unit tests

[crookedstorm]

Initially this is just testing the behavior of things. Then, hopefully we can tweak the paralellism and make things faster.

Summary by CodeRabbit

• Chores
  • Increased parallel test workers in CI from 2 to 4 to speed up Python test runs.
  • Added a CI linting rule to enforce kebab-case naming for action inputs, improving workflow consistency and preventing naming errors.

[coderabbitai]

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

⚙️ Run configuration

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Plan: Enterprise

Run ID: 04c4fc87-6c4a-4b34-add2-ca0ebc5c3b06

📥 Commits

Reviewing files that changed from the base of the PR and between 683be80 and 0ce8258.

📒 Files selected for processing (2)

• .github/actionlint.yaml
• .github/workflows/ci.yaml

💤 Files with no reviewable changes (1)

• .github/actionlint.yaml

🚧 Files skipped from review as they are similar to previous changes (1)

• .github/workflows/ci.yaml

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📝 Walkthrough

Walkthrough

CI workflow .github/workflows/ci.yaml increases PYTEST_WORKERS from "2" to "4" for both python-unit-test and python-integration-test jobs' test steps. .github/actionlint.yaml adds a custom actionlint rule input-names-kebab-case enforcing kebab-case for action input keys.

Changes

CI Workflow & Linting

Layer / File(s)	Summary
Increase PYTEST_WORKERS .github/workflows/ci.yaml	PYTEST_WORKERS changed from "2" to "4" in the python-unit-test and python-integration-test job test-step environments.
Add actionlint input-name rule .github/actionlint.yaml	Adds input-names-kebab-case custom rule validating ^inputs\.[a-z0-9-]+$ and emitting input name must be kebab-case (lowercase and hyphens only) on violations.

Possibly related PRs

• NVIDIA-NeMo/nemo-platform#239: Overlapping CI workflow and same actionlint custom rule changes.

Suggested reviewers

• mckornfield
• svvarom

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	Title directly matches the main change: increasing PYTEST_WORKERS from 2 to 4 to update test parallelism in CI.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.

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✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch speed-up-tests/crookedstorm

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[github-actions]

Suite	Lines Covered	Line Rate	Branch Rate
Unit Tests	19027/25079	75.9%	62.5%
Integration Tests	12035/23851	50.5%	25.7%