Fix recover_offline error: replace deprecated count() with countDocum…

[bsplu]

Title:
Fix: Resolve error in recover_offline for compatibility with MongoDB 4.0+.

Summary

Major changes:

• Fix: Replaced the deprecated count() function with countDocuments() in the recover_offline function to ensure compatibility with MongoDB 4.0+.

This change is required because PyMongo no longer supports the count() method. Instead, the count_documents() method from the Collection class should be used. For more details, refer to the PyMongo documentation and MongoDB documentation.

Checklist

• I only found the recover_offline function with this issue. Other functions, such as reset, seem to have already addressed it, but please double-check. Thank you!