Use `asyncio.to_thread` to avoid `DeadlockError` while sending exception to Sentry

[Natim]

What was changed

Make the capture_exception call async in Sentry intercepor

Why?

Use asyncio.to_thread to avoid DeadlockError while sending exception to Sentry

Checklist

1. Refs #140

2. How was this tested: In production _DeadlockError was raised

3. Any docs updates needed? No