CB-38082: Fix order for paginated sensor search

[zacharyestep]

Pull request checklist

Please check if your PR fulfills the following requirements:

• [ x] Docs have been reviewed and added / updated if needed (for bug fixes / features)
• [ x] Tests have been added that prove the fix is effective or that the feature works.
• [ x] New and existing tests pass locally with the changes.
• [x ] Code follows the style guidelines of this project (PEP8, clean code).
• [x ] Linter has passed locally and any fixes were made for failures.
• [ x] A self-review of the code has been done.

Pull request type

Bugfix/issue

Please check the type of change your PR introduces:

• [+ ] Bugfix

What is the ticket or issue number?

cb-38082

• Ticket Number: N/A

• Issue Number:

• [BUG] API len(cb.select(Sensor)) causes error when >1000 sensors #301

Pull Request Description

One line change to change the sort order for EDR sensor searches from 'last_checkin_time' (default when none provided explicitly) to 'hostname' to make the sort stable as sensors checkin during paging

Does this introduce a breaking change?

• Yes
• [+ ] No

How Has This Been Tested?

Manual testing

`from cbapi.response import CbResponseAPI, Sensor
import logging
logging.basicConfig(level=logging.DEBUG)

cb=CbResponseAPI()
cb_sensors = cb.select(Sensor).all()
sensors = list(cb_sensors)
`

Other information: