chore: bump version to 2.3.1

chore: bump version to 2.3.1+jdk21

JDK21 backport with preview features

Release version 2.3.0

Updated version number to 2.2.1 and CHANGELOG

Bumped release number to 2.2.0

Updated version to jnetpcap-wrapper:2.1.0

Upgraded nexus-stagin-maven-plugin:1.6.13

Changed meta info from v2.0.0 to new maven coordinates

com.slytechs.jnet.jnetpcap:jnetpcap-wrapper:2.0.1 and deployed to Maven
Central repository

Release 2.0.0 built for JDK 19