Update LocalDb package in test project

[mattjohnsonpint]

When the following items are merged and a new version is published, we should update the LocalDb package that we use in our SQL/EF unit tests.

• Provide options to control shutdown SimonCropp/LocalDb#423
• Support await using in net6 also SimonCropp/LocalDb#422

Then we should also update our SqlListenerTests for the await using issue (see TODOs in code, or on #1615).