The ::debug:: syntax is used to output debug messages in GitHub Actions workflows. This command will print the message "action successfully debugged" in the debug logs when the workflow runs.

Deleting a workflow run
You can delete a workflow run that has been completed, or is more than two weeks old.
Reference:
https://docs.github.com/en/enterprise-cloud@latest/actions/how-tos/manage-workflow- runs/delete-a-workflow-run

The $GITHUB_ENV environment variable is used to set environment variables that persist across steps in a workflow job. By echoing FOO=bar into $GITHUB_ENV, the variable FOO will be available in subsequent steps within the same job.

GITHUB_WORKSPACE is a default environment variable in GitHub Actions that points to the directory on the runner where your repository is checked out. This variable allows you to access files within your repository during the workflow.

Using inputs and secrets in a reusable workflow
You can define inputs and secrets, which can be passed from the caller workflow and then used within the called workflow.
In the reusable workflow, use the inputs and secrets keywords to define inputs or secrets that will be passed from a caller workflow.
on:
workflow_call:
inputs:
config-path:
required: true
type: string
secrets:
personal_access_token:
required: true
Reference:
https://docs.github.com/en/enterprise-cloud@latest/actions/how-tos/reuse-automations/reuse- workflows