JX not bumping version according to conventionalcommits

[serhiykrupka]

looks line need override step next-version and use commandjx step next-version with flag --semantic-release according to https://jenkins-x.io/commands/jx_step_next-version/

• https://www.conventionalcommits.org/en/v1.0.0/
• https://jenkins-x.io/commands/jx_step_changelog/
• https://github.com/jenkins-x/jxr-packs-kubernetes/blob/984e4684908dd4473f9a3d4cc648825111d2635a/packs/javascript/pipeline.yaml#L50