Update to cas-client-core 3.5.1

Fixes gh-6697

gradle/dependency-management.gradle

@@ -162,7 +162,7 @@ dependencyManagement {
 		dependency 'org.hibernate:hibernate-entitymanager:5.2.18.Final'
 		dependency 'org.hibernate:hibernate-validator:6.0.16.Final'
 		dependency 'org.hsqldb:hsqldb:2.4.1'
-		dependency 'org.jasig.cas.client:cas-client-core:3.5.0'
+		dependency 'org.jasig.cas.client:cas-client-core:3.5.1'
 		dependency 'org.javassist:javassist:3.22.0-CR2'
 		dependency 'org.jboss.logging:jboss-logging:3.3.1.Final'
 		dependency 'org.jboss.spec.javax.transaction:jboss-transaction-api_1.2_spec:1.0.1.Final'