sysutils/ldap-account-manager: update to 4.5

This release allows to set fields on tab Personal to read-only. NIS mail aliases
can managed on user tab and there is a new option if referrals should be followed.
The Pro version supports Oracle databases and organizational roles. The self
service now includes a language selection and password reset supports alternate
email addresses.

PR: 187709
Submitted by: "Vasiliy P. Melnik" <basil@vpm.net.ua> (maintainer)