Enable Idempotency E2E test for GraalVM.

Author: phipag

powertools-e2e-tests/pom.xml

@@ -253,6 +253,7 @@
                                 <include>**/LoggingE2ET.java</include>
                                 <include>**/ParametersE2ET.java</include>
                                 <include>**/TracingE2ET.java</include>
+                                <include>**/IdempotencyE2ET.java</include>
                             </includes>
                             <systemPropertyVariables>
                                 <graalvm.enabled>true</graalvm.enabled>