how to have access to the files in the composite github actions directory

Question

I am trying to store the scripts of my composite github actions in the directory of action. let me explain by an example

• Suppose I am in the myorg organization
• I create a repository named actions
• I create a directory named mydemo
• I create a file mydemo/action.yaml
• I create another file mydemo/echo.sh

In mydemo/action.yaml I have:

name: "mydemo"
description: ""

runs:
  using: "composite"
  steps:
    - name: echo hello world
      run: |
        source ${{ github.action_path }}/echo.sh
      shell: bash

and in mydemo/echo.sh I have:

echo "Hello World"

Then I create a tag named v1

I also provide access in settings so that it can be used as a composite action

However I have an error

It tries to run source /apps/ghe-actions/_work/_actions/myorg/mydemo/v1/mydemo/echo.sh

And I see this error

/apps/ghe-actions/_work/_actions/myorg/mydemo/v1/mydemo/echo.sh: No such file or directory

How can I run the echo.sh in this example?