Per https://github.com/mongodb/mongo-c-driver/blob/1.15.0/.evergreen/config.yml/#L29 we're computing the VERSION expansion using git describe, which has differing logic from calc_release_version.py (since our release tags are no longer on the master branch).

This results in Evergreen uploading files to misleading URLs, e.g. the docs are built and uploaded. E.g. https://s3.amazonaws.com/mciuploads/mongo-c-driver/docs/libmongoc/1.11.0-572-g2549402-patch-5de565b7c9ec443819cbb358/mongoc_client_encryption_t.html