Fixes #3399 - Remove versionning of the scala-ldap in the pom.xml of scala-ldap repository which is became useless since all versions are identical for each rudder part and in the parent-pom

Fixes #3399 - Remove versionning of the scala-ldap in the pom.xml of scala-ldap repository which is became useless since all versions are identical for each rudder part and in the parent-pom