如何使同一GitHub工作流中的作业具有不同的条件？

name: Conditional Jobs

on:
  push:
    branches:
      - main

jobs:
  build:
    runs-on: ubuntu-latest
    steps:
      - name: Checkout code
        uses: actions/checkout@v2

      - name: Build and test
        run: |
          # 在这里编写构建和测试的命令

  deploy:
    needs: build
    runs-on: ubuntu-latest
    if: github.ref == 'refs/heads/main' && github.event_name == 'push' && github.actor == 'your-username'
    steps:
      - name: Checkout code
        uses: actions/checkout@v2

      - name: Deploy to production
        run: |
          # 在这里编写部署到生产环境的命令

  release:
    needs: build
    runs-on: ubuntu-latest
    if: github.event_name == 'release'
    steps:
      - name: Checkout code
        uses: actions/checkout@v2

      - name: Create release package
        run: |
          # 在这里编写创建发布包的命令