[Ubuntu] Update for 15 years of support for Ubuntu LTS releases

Canonical expands total coverage for Ubuntu LTS releases to 15 years with Legacy add-on

https://canonical.com/blog/canonical-expands-total-coverage-for-ubuntu-lts-releases-to-15-years-with-legacy-add-on

Ubuntu Pro will be 15 years instead of 12 years (i think our 10 years are out dated)

so 14.04 will get updates until April 2029

