Aborting NullPointerException when creating reports if remote transcription service was used

[lfcnassif]

Just before 4.1.0 release, I made a change to clear the service address in output folder to avoid leaking the endpoint (without authentication for now). That's causing NPE when creating a report:

java.lang.NullPointerException
	at iped.engine.task.transcript.RemoteWav2Vec2TranscriptTask.requestServers(RemoteWav2Vec2TranscriptTask.java:79)
	at iped.engine.task.transcript.RemoteWav2Vec2TranscriptTask.requestServers(RemoteWav2Vec2TranscriptTask.java:114)
	at iped.engine.task.transcript.RemoteWav2Vec2TranscriptTask.init(RemoteWav2Vec2TranscriptTask.java:71)
	at iped.engine.task.transcript.AudioTranscriptTask.init(AudioTranscriptTask.java:27)
	at iped.engine.core.Worker.initTasks(Worker.java:128)
	at iped.engine.core.Worker.<init>(Worker.java:110)
	at iped.engine.core.Manager.initWorkers(Manager.java:539)
	at iped.engine.core.Manager.process(Manager.java:264)
	at iped.app.processing.Main.startManager(Main.java:177)
	at iped.app.processing.Main.execute(Main.java:239)
	at iped.app.processing.Main.main(Main.java:304)

I'll try to use the "installation folder" configs if found. If not, disable the task. Audios are not transcribed again, but user may want to transcribe audios just when creating reports, although it doesn't update chats for now...