added an option to specify the docker_config_path for custom runners #77
  Add this suggestion to a batch that can be applied as a single commit.
  This suggestion is invalid because no changes were made to the code.
  Suggestions cannot be applied while the pull request is closed.
  Suggestions cannot be applied while viewing a subset of changes.
  Only one suggestion per line can be applied in a batch.
  Add this suggestion to a batch that can be applied as a single commit.
  Applying suggestions on deleted lines is not supported.
  You must change the existing code in this line in order to create a valid suggestion.
  Outdated suggestions cannot be applied.
  This suggestion has been applied or marked resolved.
  Suggestions cannot be applied from pending reviews.
  Suggestions cannot be applied on multi-line comments.
  Suggestions cannot be applied while the pull request is queued to merge.
  Suggestion cannot be applied right now. Please check back later.
  
    
  
    
Some steps does not run properly on self-hosted runners, issues are related to dotnet installation and docker config file location. This PR fixes the issues making it work on any runner.
docker-config-pathis used only in push action so it's added there with the default option valid for Github-managed runners. The path could be different for self-hosted runners because of the user, currently we use root but we may redefine it later.