chore(ci): add step to install linux-dev-certs for Linux runners

[samtrion]

Summary by CodeRabbit

• Chores
  • Improved Linux development certificate installation within the CI/CD pipeline setup process.

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[coderabbitai]

Walkthrough

A new GitHub Actions workflow step is added to .github/workflows/step-dotnet-tests.yml that conditionally installs the linux-dev-certs tool on Linux runners when the clear-dev-certs input flag is enabled, using dotnet tool update and install commands.

Changes

Cohort / File(s)	Summary
GitHub Actions Workflow Enhancement \.github/workflows/step-dotnet-tests.yml	Added conditional step "Install linux-dev-certs (Linux only)" that runs on Linux when inputs.clear-dev-certs is true; installs linux-dev-certs via dotnet tool commands; placed after "Resize swapfile" step (+6 lines)

Estimated code review effort

🎯 1 (Trivial) | ⏱️ ~3 minutes

Poem

🐰 A Linux cert, so fresh and clean,
With dotnet tools, a bright routine!
One step added, six lines true—
Dev certificates installed anew! 🔐

🚥 Pre-merge checks | ✅ 3

✅ Passed checks (3 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title clearly and specifically describes the main change: adding a step to install linux-dev-certs for Linux runners in the CI workflow.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.

_{✏️ Tip: You can configure your own custom pre-merge checks in the settings.}

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[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
⚠️ Please upload report for BASE (main@93b6ccf). Learn more about missing BASE report.

Additional details and impacted files

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