DRIVERS-1541: Summary of necessary driver changes Enable the retry protocol by calling mongocrypt_setopt_retry_kms Implement the new sleep and error handling functions described in integrating.md in the linked commit. Commits for syncing spec/prose tests https://github.com/mongodb/libmongocrypt/commit/2265e79c8c5dfdb4bf38a6f6b77b8fc74f02a764 https://github.com/mongodb/specifications/commit/0215a7c46df9b44ee98fab4fd63518c64c7c3c72 https://github.com/mongodb/libmongocrypt/commit/588f33a922b6c805596b7f4dbfad7bda56b8ac30 documents wrapping the error when mongocrypt_kms_ctx_fail returns false to include the source of the network error.