As we figured out in
https://github.com/elastic/elasticsearch/issues/61316#issuecomment-685482708
Azul brings back a lot of changes from JDK 11 to their Zulu8 build
and this means that we can't run this with SunJSSE in FIPS 140 mode.
This change ensures that we configure Zulu8 JDK JVMs in FIPS 140
mode, using the bouncy castle JSSE FIPS provider, instead of the
SunJSSE one ( as we do for the rest of the java 8 JVMs )
Resolves: #61316
This commit moves the configuration of all test jvms for fips to a
script plugin. Fips testing is something very specific to the
Elasticsearch build and does not need to be passed on to plugin authors.