[codex] refresh dependencies and workflow actions

[dl-alexandre]

Summary

• Refresh Go module dependencies with go get/go mod tidy.
• Refresh GitHub Actions workflow action pins where this repo has workflows.

Validation

• go test ./... passed for this module.
• The workspace-wide Go test sweep passed across all Go modules.

[chatgpt-codex-connector]

💡 Codex Review

Here are some automated review suggestions for this pull request.

Reviewed commit: 5a9a62226f

ℹ️ About Codex in GitHub

Your team has set up Codex to review pull requests in this repo. Reviews are triggered when you

• Open a pull request for review
• Mark a draft as ready
• Comment "@codex review".

If Codex has suggestions, it will comment; otherwise it will react with 👍.

Codex can also answer questions or update the PR. Try commenting "@codex address that feedback".

[chatgpt-codex-connector]

Update Codecov input to files after upgrading to v6

After changing this step to codecov/codecov-action@v6, the workflow still passes file:; in v6 the action input is files (plural), so file is ignored as an unexpected input. That means the explicit coverage path is no longer honored and coverage upload can silently miss .artifacts/coverage/coverage.out depending on auto-discovery behavior, reducing reporting reliability.

Useful? React with 👍 / 👎.