Implement update_many

[clun]

The data API offers the methods update_many that allows to update a subset of properties for different record matching a criteria

Documentation
https://docs.datastax.com/en/astra/astra-db-vector/api-reference/data-api-commands.html#update-many-matching-documents-with-set

Sample:

{ 
  "updateMany": {
    "filter": {"status" : "active" },
    "update" : {"$set" : { "status" : "inactive"}}
  }
} 

As of today this feature is not exposed in the astrapy.