add explicit binding (#735)

* add explicit binding

* fixup building on windows

* reactivate unit test

---------

Co-authored-by: Enrice <erich.mauerboeck@ergo-versicherung.at>

docs-core/src/main/java/com/sismics/docs/core/util/authentication/LdapAuthenticationHandler.java

@@ -62,6 +62,7 @@ public class LdapAuthenticationHandler implements AuthenticationHandler {
             if (ldapConnection == null) {
                 return null;
             }
+            ldapConnection.bind();
 
             EntryCursor cursor = ldapConnection.search(ConfigUtil.getConfigStringValue(ConfigType.LDAP_BASE_DN),
                     ConfigUtil.getConfigStringValue(ConfigType.LDAP_FILTER).replace("USERNAME", username), SearchScope.SUBTREE);