Add libldap as a dependency of the runtime-deps package

[MichaelSimons]

In 5.0 a new native dependency was added on libldap. As a result, it should be added as a dependency of the runtime-deps linux packages.

Related:
#36405
#36888
#68365

[NikolaMilosavljevic]

@joperezr, @tarekgh , should libldap be included as a runtime-deps package?

[joperezr]

I'm not sure what runtime-deps package is or what libraries should go in it, but libldap is pre-installed in most Unix distros with only a few exceptions (like minimal distros, for example docker containers) but it is by default present on all of the Linux and OSX platforms that we test against. For those few places where it is not present by default, it is a requirement to install it manually but I thought that was ok given that System.DirectoryServices.Protocols is an OOB package and not part of the shared framework.

[NikolaMilosavljevic]

Given that this dependency is required by an OOB package, we've decided not to add it to runtime-deps package.

We might want to create optional dependencies.