INTPYTHON-722 - Add DriverInfo metadata to MongoDB vector store

[NoahStapp]

Description

Adds metadata to the MongoDB vector store for telemetry.

Type of change

Please delete options that are not relevant.

• [x] Refactor (does not change functionality, e.g. code style improvements, linting)

How Has This Been Tested?

No additional testing, as this is purely a telemetry update that uses existing code within PyMongo.

Checklist:

• [X] My code follows the style guidelines of this project
• [X] I have performed a self-review of my own code
• [X] I have commented my code, particularly in hard-to-understand areas
• [X] I have made corresponding changes to the documentation
• [X] My changes generate no new warnings
• [X] I have added tests that prove my fix is effective or that my feature works
• [X] New and existing unit tests pass locally with my changes
• [X] Any dependent changes have been merged and published in downstream modules
• [X] I have checked my code and corrected any misspellings

Maintainer Checklist

• [ ] closes #xxxx (Replace xxxx with the GitHub issue number)
• [ ] Made sure Checks passed

[CLAassistant]

All committers have signed the CLA.

[Jibola]

@Dev-Khant @dgupta18 Any chance one of you could provide review on this PR? Is there anything we're missing here?