In mongosync, it is becoming important for us to have a comprehensive list of collections that exist at the end of the

js/core/**/*.js

tests. This list will be used in the mongosync passthroughs to create a filter for filtered sync, amongst other things.

We'd like this list to be written to a file and uploaded to the artifact tarball for each mongo server evergreen run for a specific commit, so that this file can be later accessed from the artifact tarball by mongosync using db-contrib-tool. It doesn't matter to me which task in the mongo server repo actually does the uploading.

This ticket is also not necessarily a request to implement this fully, it is acceptable for an engineer on mongosync to do the implementation of this, as long as it makes sense to someone on the SERVER team and they can support the mongosync engineer.