We should write something similar to unittest main which does common initialization for us. We should be able to parse centipede args as well.

Here's an instance of a test doing its own initialization

https://github.com/10gen/mongo/blob/9dedda784d1487d8d195f65f1fb3d999cf159300/src/mongo/db/query/compiler/metadata/path_arrayness_fuzz_test.cpp#L55 

We should refactor the existing fuzz tests that create do their own server init.