message: ci: Bump macOS VM image to the latest version
diff: @@ -168,13 +168,13 @@ task:
  FILE_ENV: "./ci/test/00_setup_env_mac.sh"
  task:
  - name: 'macOS 10.15 native [gui] [no depends]'
  + name: 'macOS 11 native [gui] [no depends]'
  macos_brew_addon_script:
  - brew install boost libevent berkeley-db4 qt miniupnpc libnatpmp ccache zeromq qrencode sqlite libtool automake pkg-config gnu-getopt
  << : *GLOBAL_TASK_TEMPLATE
  osx_instance:
  # Use latest image, but hardcode version to avoid silent upgrades (and breaks)
  - image: catalina-xcode-12.1 # https://cirrus-ci.org/guide/macOS
  + image: big-sur-xcode-12.4 # https://cirrus-ci.org/guide/macOS
  env:
  DANGER_RUN_CI_ON_HOST: "true"
  CI_USE_APT_INSTALL: "no"
  