Run integration tests against mongodb 8.0

[todvora]

This is just a test, running our ITs against Mongodb 8.0. Do not merge! /nocl

Description

Motivation and Context

How Has This Been Tested?

Screenshots (if appropriate):

Types of changes

• [ ] Bug fix (non-breaking change which fixes an issue)
• [ ] New feature (non-breaking change which adds functionality)
• [ ] Refactoring (non-breaking change)
• [ ] Breaking change (fix or feature that would cause existing functionality to change)

Checklist:

• [ ] My code follows the code style of this project.
• [ ] My change requires a change to the documentation.
• [ ] I have updated the documentation accordingly.
• [ ] I have read the CONTRIBUTING document.
• [ ] I have added tests to cover my changes.

[bernd]

@todvora We need to investigate if this is a problem for us: https://www.mongodb.com/docs/manual/release-notes/8.0-compatibility/#queries-for-null-don-t-match-undefined-fields