Sonar cleanup: RegistryAwareClientTest (#326)

Change lambda parameter so it doesn't shadow an instance field.

src/test/java/org/kiwiproject/jersey/client/RegistryAwareClientTest.java

@@ -238,7 +238,7 @@ void shouldBuildClientForWith() {
 
  var identifier = ServiceIdentifier.builder().serviceName("test-service").build();
  var target = registryAwareClient.targetForService(identifier, PortType.ADMIN,
- instance -> instance.getPaths().getStatusPath());
+ theInstance -> theInstance.getPaths().getStatusPath());
 
  assertThat(target.getUri()).hasToString("https://localhost:8081/ping");
  }