The correct options are name: release-flow-42 and name: ${{ 'release-flow-42' }}. Both set the workflow name that appears in the Actions interface and on the workflow page.
The plain static name key with a simple string sets the workflow name clearly and predictably. It is the most straightforward way to define the workflow title.
The expression form with a single quoted string evaluates to the same literal value. GitHub Actions accepts a string result for the workflow name, so this produces a valid name while keeping consistency with other places where expressions are used.