test: remove the use of ts import from tests to support node 20

[vikkrantxx7]

📖 Overview

This fixes the ts import in tests which are not supported by node 20 and was earlier introduced in dev using node 22.

🎯 Type of Change

• 🐛 Bug fix (patch) - fixes an issue
• ✨ New feature (minor) - adds functionality
• 💥 Breaking change (major) - changes existing behavior
• 📝 Documentation - updates docs only
• 🔧 Tooling/Config - CI, build, dependencies
• ♻️ Refactor - code improvement, no behavior change
• ⚡ Performance - improves performance

✅ Changes

update import in tests to use mjs in place of ts files.

⚠️ Breaking Changes

• Yes (describe below and include migration guide in changeset)
• No

📝 Checklist

• Code follows project style (npm run lint passes)
• Tests pass locally (npm test)
• Commits follow conventional commits
• Changeset added (if needed)
• Documentation updated (if needed)
• Types updated (if API changed)

[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud