DRIVERS-2309:
Sync the new FLE legacy tests added in: https://github.com/mongodb/specifications/commit/2fd6b69c9a0ad58d8c246a852fc389617de6e79d
The tests require libmongocrypt 1.5.0-alpha2. Binaries of 1.5.0-alpha2 may be downloaded from Evergreen here .
Description
This ticket was split from DRIVERS-2309, please see that ticket for a detailed description.