Testing SignPath Integration

[Brendonovich]

Adds a test workflow for windows codesigning of the CLI

[github-actions]

Hey! Your PR title Testing SignPath Integration doesn't follow conventional commit format.

Please update it to start with one of:

• feat: or feat(scope): new feature
• fix: or fix(scope): bug fix
• docs: or docs(scope): documentation changes
• chore: or chore(scope): maintenance tasks
• refactor: or refactor(scope): code refactoring
• test: or test(scope): adding or updating tests

Where scope is the package name (e.g., app, desktop, opencode).

See CONTRIBUTING.md for details.

[github-actions]

The following comment was made by an LLM, it may be inaccurate:

No duplicate PRs found

[reneleonhardt]

If new code is added, why aren't the latest releases being used?

Suggested change

	uses: actions/upload-artifact@v4
	uses: actions/upload-artifact@v6

And supply chain security could also be improved by pinning.
Both could easily be done by npx actions-up -y.