Detailed steps to reproduce the problem?

Link Check tests are failing in PRs.
This can be reproduced locally with just docs-link

The failing section is this:

```(api/pymongo/asynchronous/database: line 3) broken https://mongodb.com/docs/manual/reference/operator/aggregation-pipeline - 404 Client Error: Not Found for url: https://www.mongodb.com/docs/manual/reference/operator/aggregation-pipeline```

Definition of done: what must be done to consider the task complete?

The correct url is now :
https://www.mongodb.com/docs/manual/core/aggregation-pipeline/