After propagate group-level integrations
!44023, we missed
one scenario where the integration could inherit from another
integration from the ancestors, not the closest one, this is something
that we also fixed finding the closest integration
!45022.

Example: Having a group, a subgroup, and a project belonging to the
subgroup. If we update the group, it propagates the settings to the
subgroup and project (both having inherit_from_id = group.id (pointing
to the group) but if after that, we update the settings of the subgroup,
it doesn't propagate them to the project. This is because the project's
inherit_from_id is still pointing to the group id from the first
propagation.

This always updates the integrations of any descendants for a group
integration.