Update build file to be gradle v7 compatible

roles/keycloak/files/providers/keycloak-mailpass-rest/build.gradle.kts

@@ -42,12 +42,12 @@ dependencies {
     compileOnly("org.keycloak:keycloak-server-spi:$keycloakVersion")
     compileOnly("org.keycloak:keycloak-server-spi-private:$keycloakVersion")
     compileOnly("org.keycloak:keycloak-services:$keycloakVersion")
-
     compileOnly("org.jboss.spec.javax.ws.rs:jboss-jaxrs-api_2.1_spec:$javaxVersion")
 
     testImplementation("junit:junit:$junitVersion")
     testImplementation("org.hamcrest:hamcrest:$hamcrestVersion")
-    testCompile("com.palantir.docker.compose:docker-compose-rule-junit4:$dockerComposeRuleVersion")
+    testImplementation("com.palantir.docker.compose:docker-compose-rule-junit4:$dockerComposeRuleVersion")
+
 }
 
 tasks {