Confirm if docker is installed in `clear-docker-cache`
What does this MR do?
Check if Docker is installed in the clear-docker-cache
and exit if the check fails
What's the best way to test this MR?
Run the scripts in instances where docker is not installed and it should exit and request the user to install docker
What are the relevant issue numbers?
Closes #27988 (closed)
Edited by Silvester Wainaina