PYTHON 5790 Standardize references to test collections in tests

[sleepyStick]

PYTHON-5790

Changes in this PR

renamed the following

• db.test -> db.coll
• self.db.test -> self.db.coll
• client.test.test -> client.db.coll
• client.pymongo_test.test -> client.pymongo_test.coll

basically collections named test in our tests are now named coll

Test Plan

Checklist

Checklist for Author

• [NA] Did you update the changelog (if necessary)?
• Is there test coverage?
• [NA] Is any followup work tracked in a JIRA ticket? If so, add link(s).

Checklist for Reviewer

• Does the title of the PR reference a JIRA Ticket?
• Do you fully understand the implementation? (Would you be comfortable explaining how this code works to someone else?)
• Is all relevant documentation (README or docstring) updated?

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.

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