docker command not found

[avahoffman]

A lot of downstream repos are getting this error at the entrypoint stage

/__w/_temp/e293ad54-2a9e-488a-bda9-70f08af82084.sh: line 7: docker: command not found

https://github.com/ottrproject/ottrproject.github.io/actions/runs/15353783405/job/43208117264

If nothing else, add a catch that checks if docker is found before completing successfully

ottr-preview/action.yml

Lines 71 to 77 in c3f4ed7

	curl -OL https://github.com/ottrproject/ottr-preview/raw/refs/heads/main/entrypoint.sh
	# TODO: I was fighting curl about downloads I know this should be a separate step
	# Just fix this silly thing later.
	if [ '${{ inputs.root_path }}' != '.' ]; then
	mv entrypoint.sh ${{ inputs.root_path }}/entrypoint.sh
	fi
	docker run -v ${{ github.workspace }}/${{ inputs.root_path }}:/home \