Replace usage of arrays when there is a single item in the dependency list

What problem are you trying to solve?

Improve readability of the workflow

What precondition(s) should be checked before applying this recipe?

There is one single item within the needs block and an array is used

The recipe should not be applied if there are multiple entries

  docker-build:
    needs: [ maven, slack ]
    uses: ...

Describe the situation before applying the recipe

  docker-build:
    needs: [ maven ]
    uses: ...

Describe the situation after applying the recipe

  docker-build:
    needs: maven
    uses: ...

Locate the recipe entry point for GitHub Actions job dependencies and use the issue's before-and-after YAML as the starting test fixture. Verify that a singleton needs array becomes a scalar value, while arrays with multiple entries remain unchanged; add or update recipe tests to cover both cases.