[Security] Prevent option injection in checkIfIgnoredInGitRepository

[gonzaloriestra]

WHY are these changes introduced?

Hardens file path checking against option injection vulnerabilities in Git commands.

WHAT is this pull request doing?

Passes -- prior to file paths in git check-ignore command execution to ensure trailing options or file names starting with hyphens are treated as literal paths rather than command flags. Short-circuits empty file list checks.

How to test your changes?

CI

Post-release steps

N/A

Checklist

• I've considered possible cross-platform impacts (Mac, Linux, Windows)
• I've considered possible documentation changes
• I've considered analytics changes to measure impact
• The change is user-facing — I've identified the correct bump type (patch for bug fixes · minor for new features · major for breaking changes) and added a changeset with pnpm changeset add

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PR created automatically by Jules for task 3028190617833342616 started by @gonzaloriestra

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