feat: add support for unzip argument in downloadArtifact

[shiipou]

This PR just add the possibility to filter what we want to unzip or not when downloading artifacts.

This feature was asked by so many people, and the implementation change almost nothing in the code. So it won't break any part of the toolkit.

Here a simple example that show how it work : https://github.com/shiipou/download-artifact/blob/main/.github/workflows/test.yml

You can also try it with this workflow :

Workflow

name: Loop Over Artifact IDs

on: [push]

permissions:
  contents: write
  actions: write
  packages: write

jobs:
  create-artifacts:
    runs-on: ubuntu-latest
    steps:
      - name: Create and upload artifacts
        run: |
          mkdir -p artifact1 artifact2
          echo "Content1" > artifact1/file.txt
          echo "Content2.1" > artifact2/file1.txt
          echo "Content2.2" > artifact2/file2.txt
          echo "Content2.3" > artifact2/file3.txt
      - id: artifact-1
        name: Upload artifact 1
        uses: actions/upload-artifact@v4
        with:
          name: artifact1
          path: artifact1/*
      - id: artifact-2
        name: Upload artifact 2
        uses: actions/upload-artifact@v4
        with:
          name: artifact2
          path: artifact2/*
    outputs:
      artifact-1-id: ${{ steps.artifact-1.outputs.artifact-id }}
      artifact-2-id: ${{ steps.artifact-2.outputs.artifact-id }}

  process-artifacts:
    needs: create-artifacts
    runs-on: ubuntu-latest
    steps:
      - id: download-artifacts
        name: Download artifacts
        uses: shiipou/download-artifact@main
        with:
          artifact-ids: ${{ needs.create-artifacts.outputs.artifact-1-id }},${{ needs.create-artifacts.outputs.artifact-2-id }}
          path: artifacts/
          unzip: ${{ needs.create-artifacts.outputs.artifact-1-id }}
      - name: print artifacts
        run: ls -pAR artifacts/
      - name: unzip artifacts
        run: unzip artifacts/**/*.zip