Bump cimg/base from 2020.12 to 2021.04 in /docker/ci/circleci#155

dependabot[bot] wants to merge 1 commit into

mastercbarrettfb/libra:masterfrom

dependabot/docker/docker/ci/circleci/cimg/base-2021.04cbarrettfb/libra:dependabot/docker/docker/ci/circleci/cimg/base-2021.04Copy head branch name to clipboard