Currently, ci/lint.sh runs both clang-tidy and pylint: https://github.com/flutter/engine/blob/main/ci/lint.sh#L73. We should split ci/lint.sh into two scripts, one that does clang-tidy, and a second that runs pylint. The pylint script is much cheaper, and can probably be run as a subjob of e.g. linux_unopt or linux_host_engine instead.