ci: use codecov @v6 [citest_skip]

[richm]

use latest version of codecov @v6

Signed-off-by: Rich Megginson rmeggins@redhat.com

Summary by Sourcery

CI:

• Bump Codecov GitHub Action from v5 to v6 in the Python unit test workflow.

[sourcery-ai]

Reviewer's guide (collapsed on small PRs)

Reviewer's Guide

Updates the CI workflow to use the latest major version of the Codecov GitHub Action (v6) for uploading coverage reports, with no other behavior changes intended.

File-Level Changes

Change	Details	Files
Bump Codecov GitHub Action from v5 to v6 in the Python unit test CI workflow.	Update the uses: directive in the coverage upload step to reference codecov/codecov-action@v6 instead of @v5 Keep the job structure, step name, and environment unchanged to preserve existing CI behavior aside from the action version	.github/workflows/python-unit-test.yml

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[bri-tong]

Code Review: ci: use codecov @v6

Summary

This is a minimal, well-scoped CI change that bumps codecov/codecov-action from v5 to v6 in the Python unit test workflow. The change is a single-line version tag update with no functional workflow modifications. It brings the codecov action in line with the other actions in this workflow (actions/checkout@v6, actions/setup-python@v6), all of which now reference @v6 tags.

Blocking Issues

None.

Non-blocking Suggestions

1. Consider pinning to a full SHA instead of a major version tag — The workflow currently uses mutable major-version tags (@v6) for all actions. While this is common and convenient, pinning to a specific commit SHA (e.g., codecov/codecov-action@<sha>) with a version comment provides better supply-chain security against tag hijacking. This applies to all actions in this file, not just this change, so it's not specific to this PR.

2. No with: parameters specified — The codecov action is invoked with no explicit configuration (no token, no flags, no files). This works for public repos relying on defaults, but if codecov-action@v6 changes any defaults (e.g., file discovery, upload behavior), there's no explicit configuration to anchor behavior. Worth verifying the v6 changelog for any breaking default changes.

Questions / Clarifications

None — the intent is clear and the change is straightforward.

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Verdict: ✅ Clean, low-risk change. No issues found.