message: use only date as a identifier
diff: @@ -4,7 +4,7 @@ runs:
  using: "composite"
  steps:
  - id: "unique_id"
  - run: echo "::set-output name=id::${GITHUB_ACTION}_$(date +%s)"
  + run: echo "::set-output name=id::$(date +%s)"
  shell: bash
  outputs:
  unique_id:
  