Load groovy parent first
Load groovy parent first

It appears that groovy is going some stuff with
soft references that prevent the ClassLoader being
collected.

Further work should be done at some point to figure
out what is wrong, but for now we can just make it
parent first.

Fixes #12498

quarkusio/quarkus,quarkusio/quarkus,quarkusio/quarkus,quarkusio/quarkus,quarkusio/quarkus