Update gradle-launch4j plugin
Update gradle-launch4j plugin

Update gradle-launch4j to 2.4.4 to cope with new Java version scheme
(JEP 223).
Also, use install4j plugin from Gradle plugin portal.

meitar/zaproxy,thc202/zaproxy,gmaran23/zaproxy,psiinon/zaproxy,zaproxy/zaproxy,thc202/zaproxy,zaproxy/zaproxy,thc202/zaproxy,meitar/zaproxy,gmaran23/zaproxy,zaproxy/zaproxy,thc202/zaproxy,meitar/zaproxy,psiinon/zaproxy,meitar/zaproxy,gmaran23/zaproxy,kingthorin/zaproxy,zaproxy/zaproxy,gmaran23/zaproxy,kingthorin/zaproxy,zaproxy/zaproxy,psiinon/zaproxy,Ali-Razmjoo/zaproxy,thc202/zaproxy,kingthorin/zaproxy,kingthorin/zaproxy,psiinon/zaproxy,thc202/zaproxy,Ali-Razmjoo/zaproxy,Ali-Razmjoo/zaproxy,gmaran23/zaproxy,meitar/zaproxy,meitar/zaproxy,zaproxy/zaproxy,gmaran23/zaproxy,Ali-Razmjoo/zaproxy,psiinon/zaproxy,zaproxy/zaproxy,meitar/zaproxy,gmaran23/zaproxy,Ali-Razmjoo/zaproxy,Ali-Razmjoo/zaproxy,kingthorin/zaproxy,psiinon/zaproxy,thc202/zaproxy,kingthorin/zaproxy,kingthorin/zaproxy,meitar/zaproxy,Ali-Razmjoo/zaproxy,psiinon/zaproxy