/etc/apache2/mods-available/vhost_ldap.load is in libapache2-mod-vhost-ldap 2.4.0-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 | #Depends: ldap
LoadModule vhost_ldap_module /usr/lib/apache2/modules/mod_vhost_ldap.so
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