Solve the build incompatibility with JDK 21 and higher

[edegenetais-nx]

The pscloader project fails to build with JDK-21.

[ERROR] Failed to execute goal org.apache.maven.plugins:maven-compiler-plugin:3.8.0:compile (default-compile) on project pscload: Fatal error compiling: java.lang.NoSuchFieldError: Class com.sun.tools.javac.tree.JCTree$JCImport does not have member field 'com.sun.tools.javac.tree.JCTree qualid' -> [Help 1]

[edegenetais-nx]

A quick search points to lombok :

https://stackoverflow.com/questions/77171270/compilation-error-after-upgrading-to-jdk-21-nosuchfielderror-jcimport-does-n

Upgrading the lombok version would probable be a good lead.

[edegenetais-nx]

We also need to remove this from project documentation :