pymongo integration

### Discussed in https://github.com/getsentry/sentry-python/discussions/1580

<div type='discussions-op-text'>

<sup>Originally posted by **abhishek17569** August 24, 2022</sup>
Hello All,
I'm using pymongo and performing multiple aggregation pipelines. 
I want to get the DB process spans to be shown in event breakdown.