Bump net-ldap from 0.16.1 to 0.16.2 (#12479)

Bumps [net-ldap](https://github.com/ruby-ldap/ruby-net-ldap) from 0.16.1 to 0.16.2.
- [Release notes](https://github.com/ruby-ldap/ruby-net-ldap/releases)
- [Changelog](https://github.com/ruby-ldap/ruby-net-ldap/blob/master/History.rdoc)
- [Commits](https://github.com/ruby-ldap/ruby-net-ldap/compare/v0.16.1...v0.16.2

)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>