Conditional check within Install Docker Task is Improvable

[jimbo8098]

Currently, the task is structured in the code blocks below:

windows-docker-role/tasks/main.yml

Lines 51 to 58 in 10770bb

	- name: Install latest Docker version
	win_dsc:
	resource_name: PackageManagement
	Name: "docker"
	ProviderName: DockerMsftProvider
	notify:
	- Restart server following Docker changes
	when: docker.version == "latest"

windows-docker-role/tasks/main.yml

Lines 60 to 68 in 10770bb

	- name: Install specific Docker version
	win_dsc:
	resource_name: PackageManagement
	Name: "docker"
	ProviderName: DockerMsftProvider
	RequiredVersion: "{{ docker.version }}"
	notify:
	- Restart server following Docker changes
	when: docker.version != "latest"

This should be converted to ensure that docker.version exists prior to the equality check otherwise it will fail if you diverge some of the variables within the docker dict.