Merge pull request #961 from michalvavrik/backports/strimzi-fix

[1.3.z] Don't enforce lowercase Kafka registry image name as Apicurio Docker tag don't get recognized

quarkus-test-service-kafka/src/main/java/io/quarkus/test/services/containers/KafkaContainerManagedResourceBuilder.java

@@ -87,7 +87,7 @@ protected String getRegistryImageVersion() {
             }
         }
 
-        return registryImage.toLowerCase();
+        return registryImage;
     }
 
     @Override