net/ruby-net-ldap: update to 0.19.0

0.19.0 (2024-01-03)

* Net::LDAP::DN - Retain trailing spaces in RDN values in DNs by @TomSellers
  in #412
* Add in ability for users to specify LDAP controls when conducting searches
  by @gwillcox-r7 in #411
* Document connect_timeout in Constructor Details by @alexjfisher in #415
* Fix openssl error when using multiple hosts by @jpdasma in #417

New Contributors

* @TomSellers made their first contribution in #412
* @gwillcox-r7 made their first contribution in #411
* @alexjfisher made their first contribution in #415

(taca)