fix: disable scheduled tasks in testing environment

[pi0]

🔗 Linked issue

❓ Type of change

• 📖 Documentation (updates to the documentation, readme, or JSdoc annotations)
• 🐞 Bug fix (a non-breaking change that fixes an issue)
• 👌 Enhancement (improving an existing functionality like performance)
• ✨ New feature (a non-breaking change that adds functionality)
• 🧹 Chore (updates to the build process or auxiliary tools and libraries)
• ⚠️ Breaking change (fix or feature that would cause existing functionality to change)

📚 Description

This is a rather quick fix for the (experimental) scheduled tasks that if run in the testing environment, can cause tests to hang.

Later we might think of utils to emulate scheduled tasks within testing environment without making side-effects.

📝 Checklist

• I have linked an issue or discussion.
• I have updated the documentation accordingly.