message: Use a more recent cimg go and stop clobbering the workspace with a checkout
  This step has been breaking for a while.  One reason it's certainly been
  broken though is that the `checkout` step has been clobbering the other.
diff: @@ -88,12 +88,11 @@ jobs:
  Publish GitHub Release:
  docker:
  - - image: circleci/golang:latest
  + - image: cimg/go:1.16.3
  steps:
  - attach_workspace:
  # Must be absolute path or relative path from working_directory
  at: .
  - - checkout
  - run:
  name: "Publish Release on GitHub"
  command: |
  