Update dependency com.github.dasniko:testcontainers-keycloak to v3.8.0

Author: renovate[bot]

pom.xml

@@ -274,7 +274,7 @@
     <dependency>
       <groupId>com.github.dasniko</groupId>
       <artifactId>testcontainers-keycloak</artifactId>
-      <version>3.7.0</version>
+      <version>3.8.0</version>
       <scope>test</scope>
     </dependency>