cf2rdf cmd line execution only works with 'watchdog'

[graybeal]

The cf2rdf instructions at https://github.com/mmisw/cf2rdf/blob/main/README.md only work if the watchdog option is selected.

If the configuration is set to use a particular version, the registration option fails because the version number is not captured locally.

I could set up the .conf to download a particular version (not current) and that seemed to work e.g. with this:
java -jar cf2rdf-x.y.z.jar download convert
But when I tried to register the result it I got an Exception that seemed to reflect the fact that it expects the version to be set in whatever way the watchdog does it, not just in my conf file.

Exception in thread "main" java.lang.Exception
	at org.mmisw.cf2rdf.cf2rdf$.$anonfun$registerOntologies$1(cf2rdf.scala:82)

So I ran it with the watchdog parameter and the new CF versions got registered. So Success! (mostly)