Enable to pass empty ArrayList in schemaless

[jx2lee]

like #19 , smt failed when empty ArrayList is contained.
my env is not using schema registry and same problem occurred, i fixed to pass transform when empty arraylist included

[jx2lee]

Error:  com.github.cedelsb.integration.Record2JsonStringIT  Time elapsed: 49.565 s  <<< ERROR!
org.testcontainers.containers.ContainerLaunchException: Local Docker Compose not found. Is docker-compose on the PATH?
	at com.github.cedelsb.integration.Record2JsonStringIT.setup(Record2JsonStringIT.java:106)

[INFO] 
[INFO] Results:
[INFO] 
Error:  Errors: 
Error:    Record2JsonStringIT.setup:106 » ContainerLaunch Local Docker Compose not found...
[INFO] 
Error:  Tests run: 1, Failures: 0, Errors: 1, Skipped: 0
[INFO] 
[INFO] 
[INFO] --- maven-failsafe-plugin:2.22.2:verify (default) @ kafka-connect-transform-record2jsonstring ---
[INFO] 
[INFO] ------------------------------------------------------------------------

test ci workflow failed 😞

[jx2lee]

knock, knock!