workaround service_facts issues; workaround udev, lvm issues on el9

Add workaround for the service_facts module for Ansible < 2.12

add tags to allow skipping lvm tests (#242)

lvm is currently broken on el9. We need to skip these tests until
lvm is fixed. See https://bugzilla.redhat.com/show_bug.cgi?id=1967212

remove py27 from github CI testing (#244)

py27 is no longer supported
See linux-system-roles/linux-system-roles.github.io#70
for more details

add support for storage_udevadm_trigger (#243)

On some platforms, udev is not updated immediately after blivet
completes its disk operations. The user can set
storage_udevadm_trigger: true in order to cause udev to ensure
those changes take effect immediately.

update tox-lsr version to 2.8.0 (#240)

New version adds check for proper commenting of the ansible_managed var

Signed-off-by: Sergei Petrosian [email protected]