Automated PR: Standardising Files

[kitchen-porter]

This PR will standardise the files we have with out agreed spec in sous-chefs/repo-management.
This repo has been identified by topic(s) of chef-cookbook

[github-actions]

Slowest examples

Top 10 slowest examples (1.11 seconds, 27.36% of total time)

Example	Description	Time in seconds
spec/unit/recipes/instance_spec.rb:192	test::instance on ubuntu 18.04 is expected to create systemd_unit "memcached_backend_cache.service"	0.24353
spec/unit/recipes/default_spec.rb:116	memcached::default on ubuntu 18.04 is expected to delete file "/etc/sysconfig/memcached"	0.16777
spec/unit/recipes/instance_spec.rb:186	test::instance on ubuntu 18.04 is expected to create systemd_unit "memcached_web_cache.service"	0.1012
spec/unit/recipes/instance_spec.rb:78	test::instance on rhel 7 is expected to enable memcached_instance "web_cache"	0.09456
spec/unit/recipes/instance_spec.rb:114	test::instance on ubuntu 18.04 is expected to start memcached_instance "web_cache"	0.09241
spec/unit/recipes/instance_spec.rb:180	test::instance on ubuntu 18.04 is expected to enable memcached_instance "web_cache"	0.08913
spec/unit/recipes/instance_spec.rb:84	test::instance on rhel 7 is expected to create systemd_unit "memcached_web_cache.service"	0.0879
spec/unit/recipes/instance_spec.rb:184	test::instance on ubuntu 18.04 is expected to stop service "disable default memcached"	0.08735
spec/unit/recipes/default_spec.rb:29	memcached::default on rhel 7 is expected not to disable service "disable default memcached"	0.0771
spec/unit/recipes/instance_spec.rb:185	test::instance on ubuntu 18.04 is expected to disable service "disable default memcached"	0.07094