We changed update fuzzer during SERVER-70993 but this unintentionally stopped testing against last-continuous. We should investigate if:

1. there is an existing way to set the "old bin version" via the suiteconfig's TestData. If so, we should add some overrides to reflect that: https://github.com/10gen/mongo/blob/c10e86a714918f2747999bf2bfc4814a1cf50161/buildscripts/resmokeconfig/matrix_suites/mappings/multiversion.yml#L317-L321 
2. If there is not an existing way to do this, we may need add a mechanism to do this, then do the overrides.
3. Or, do we even need to run this test? (probably yes)