Update spring-ldap-core to 2.3.4.RELEASE
Update spring-ldap-core to 2.3.4.RELEASE

Closes gh-9756

djechelon/spring-security,jgrandja/spring-security,jgrandja/spring-security,djechelon/spring-security,spring-projects/spring-security,jgrandja/spring-security,spring-projects/spring-security,djechelon/spring-security,jgrandja/spring-security,rwinch/spring-security,spring-projects/spring-security,spring-projects/spring-security,spring-projects/spring-security,spring-projects/spring-security,djechelon/spring-security,rwinch/spring-security,jgrandja/spring-security,rwinch/spring-security,rwinch/spring-security,jgrandja/spring-security,rwinch/spring-security,spring-projects/spring-security,djechelon/spring-security,rwinch/spring-security