fix(require-label): output the result

[xmfcx]

Description

The action was not returning the result due to a mistake in the modified line.

It now refers to the step correctly and returns "true" if successful.

• Description is also updated.
• Unused variable at the failed step is removed too.

Official docs

• https://docs.github.com/en/actions/sharing-automations/reusing-workflows#using-outputs-from-a-reusable-workflow

name: Reusable workflow

on:
  workflow_call:
    # Map the workflow outputs to job outputs
    outputs:
      firstword:
        description: "The first output string"
        value: ${{ jobs.example_job.outputs.output1 }}
      secondword:
        description: "The second output string"
        value: ${{ jobs.example_job.outputs.output2 }}

jobs:
  example_job:
    name: Generate output
    runs-on: ubuntu-latest
    # Map the job outputs to step outputs
    outputs:
      output1: ${{ steps.step1.outputs.firstword }}
      output2: ${{ steps.step2.outputs.secondword }}
    steps:
      - id: step1
        run: echo "firstword=hello" >> $GITHUB_OUTPUT
      - id: step2
        run: echo "secondword=world" >> $GITHUB_OUTPUT

Tests performed

• https://github.com/autowarefoundation/autoware.universe/actions/runs/12548792030 ✅
• https://github.com/autowarefoundation/autoware.universe/actions/runs/12548864873 ✅

Effects on system behavior

Not applicable.

Interface changes

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[xmfcx]

Related PR:

• ci: pass run condition to reusable workflow autoware.universe#9771