Foreman Maintain

Fixes #20870 - hammer ping check with default tag

Fixes #19715 - [Check] WARN if foreman-proxy is self-registered

Fixes #21211 - show error for invalid phase while running upgrade

Fixes #20623 - Failed scenario should exit with code 1

Fixes #20910 - [advanced procedure run] capitalize description

Fixes #20847 - Unify steps description

Fixes #20848 - Fix error messages indentation

Fixes #20597 - store the current target version of upgrade

This allows to prevent running one upgrade before finishing another one.
It also fixes an issue, where after updating the packages, one would not
be able to continue with the current upgrade when something goes wrong.

Fixes #20868 - Use correct method 'get_params_for'

Fixes #20641 - clean the upgrade storage on upgrade finish