Examples:
```yaml
jobs:
my_first_job:
steps:
- name: My first step
uses: https://gitea.com/actions/heroku@main
- name: My second step
uses: http://example.com/actions/heroku@v2.0.1
```
Reviewed-on: https://gitea.com/gitea/act/pulls/14
Reviewed-by: Lunny Xiao <xiaolunwen@gmail.com>
Co-authored-by: Jason Song <i@wolfogre.com>
Co-committed-by: Jason Song <i@wolfogre.com>