Update to Keycloak 16.0.0

 pom.xml

@@ -22,7 +22,7 @@

    <groupId>org.keycloak</groupId>
    <artifactId>keycloak-protocol-cas</artifactId>
    <version>15.0.2</version>
    <version>16.0.0</version>
    <name>Keycloak CAS Protocol</name>
    <description />

@@ -97,7 +97,7 @@
        <dependency>
            <groupId>org.xmlunit</groupId>
            <artifactId>xmlunit-core</artifactId>
            <version>2.8.2</version>
            <version>2.8.4</version>
            <scope>test</scope>
        </dependency>
        <dependency>