fix(deps): update spring ldap to v2.4.4

Author: renovate[bot]

gradle.properties

@@ -100,7 +100,7 @@ springVersion=4.3.30.RELEASE
 springSessionVersion=1.3.5.RELEASE
 spockVersion=2.1-groovy-3.0
 springfoxSwaggerVersion=2.9.2
-springLdapVersion=2.3.4.RELEASE
+springLdapVersion=2.4.4
 springModulesCacheVersion=0.8
 springSecurityVersion=4.2.20.RELEASE
 springWebflowVersion=2.4.8.RELEASE