checkout action deletes workspace files

[jtgi]

Github Sentry Action Release Bug Report

If you use the recommended flow in sentry github action docs, the checkout command will delete the workspace files. In my case this broke ability to reference source map in action-release thereafter.

Environment

How do you use this action?

- uses: actions/checkout@v2
- name: Create Sentry release
  uses: getsentry/action-release@v1
  env:
    SENTRY_AUTH_TOKEN: ${{ secrets.SENTRY_AUTH_TOKEN }}
    SENTRY_ORG: ${{ secrets.SENTRY_ORG }}
    SENTRY_PROJECT: ${{ secrets.SENTRY_PROJECT }}
  with:
    environment: production
    sourcemaps: './build/static/js'

Standard Github runners or self-hosted runners (which OS and arch?)
standard github runner

Which version of the action?
v2

Steps to Reproduce

1. use the workflow above
2. try to resolve a source map in your ./dist ./build or w/e

Expected Result

source map uploaded to sentry

Actual Result

file i/o error cannot locate ./build.

What actually happened. Maybe a screenshot/recording? Maybe some logs?
The checkout action deletes the workspace and so the ./build directory cannot be found. Removing the checkout action resolves the issue.