Description
Describe the bug
For setup-* actions they cache tools in RUNNER_TOOL_CACHE.
Doing so does not seems possible in docker based actions although the env variable is available.
For example on ubuntu github hosted runner, RUNNER_TOOL_CACHE has the path of /opt/hostedtoolcache which is not mounted onto the container, thus making it impossible to add a tool to cache and add it to path.
I tried other solutions by caching it in GITHUB_WORKSPACE but paths are not translated when being written to GITHUB_PATH, also the workspace may be the repository if checkout has been it before this action.
Expected behavior
I would expect the container workflow to have environment variables leading to usable directory and potentially paths to be converted when written in GITHUB_PATH as paths in env variables does not correspond to the runner ones.
Runner Version and Platform
Current runner version: '2.303.0'
Operating System
Ubuntu
22.04.2
LTS
Runner Image
Image: ubuntu-22.04
Version: 20230402.1
Included Software: https://github.com/actions/runner-images/blob/ubuntu22/20230402.1/images/linux/Ubuntu2204-Readme.md
Image Release: https://github.com/actions/runner-images/releases/tag/ubuntu22%2F20230402.1
Runner Image Provisioner
2.0.139.1