Fixes #31743 - Template macro install_packages (#8298)

For package installation on supported OS families: Red Hat, Debian & Suse.
In host registration users can now install packages
by setting the `host_packages` parameter.

Also if a snippet `host_init_config_post` is defined, it gets added to the registration script.

Fixes #32170 - Adding total_disk_size to host facets

This PR introduced new parameter to hosts facets. Parameter is a total
disk size that is included in Discovery plugin at own. However that
means that we have to maintain a two "facets like" codes at one time...

Fixes #32242 - Drop db_pending_migration setting

This setting was used in the past by the installer to determine whether
or not the database needs to be migrated, but that is no longer the
case.

Fixes #30779 - Implement ActionDispatch::RemoteIp (#7960)

The ActionDispatch::RemoteIp middleware can provide the remote IP
correctly as a property of the request object. This looks at
X-Forwarded-For headers while stripping out reverse proxies and falls...

Fixes #31663 - Registration templates usability issues (#8256)

- New template kind 'Host initial configuration' for
host configuration after the registration.
- Registration templates (like 'Global Registration')
cannot be assigned to operating system...

Fixes #31571 - CentOS Stream installation media

Fixes #31637 - nilify http proxy credentials

Recently a HTTP form password field changed and is disabled unless user
explicitly sets the password. From the HTML forms nature, if user does
not specify any value in the text field, server receives the value as an...

Fixes #31551 - remove ovirt_use_v4 from oVirt CR attributes

Fixes #31147 - extend StatusCalculator to use 64 bits

Fixes #31258 - Don't fail migration if setting is hardcoded

If the puppetrun setting has been hardcoded in settings.yaml, it will be
marked as readonly causing the migration attempting to delete it to
fail. Since settings have no associations and we don't need callbacks to...