[Feature] - Implement Response Status

[jeffbeagley]

Is your feature request related to a problem? Please describe.
There is currently no way to provide the expected HTTP Response Status for elasticstack_kibana_synthetics_monitor

Describe the resource you would like to have implemented.
elasticstack_kibana_synthetics_monitor

Describe the solution you'd like
Under http be able to provide a range

http = {
	status_code = ["200-300", "404"]
}

Describe alternatives you've considered
For now, I just manually go in the UI and adjust it