kubectl-gs release v3.0.0

Removed

• BREAKING Remove deprecated --enable-long-name flag (affected commands: kubectl gs template cluster/nodepool/networkpool/catalog)

Changed

• BREAKING When templating cluster manifests for CAPA clusters with kubectl gs template cluster command, now we set the workload cluster release version via the --release flag (like for vintage AWS), instead setting cluster-aws version via --cluster-version.
• Update module version to v3.