Update dependency org.apache.maven.plugins:maven-source-plugin to v3.4.0#142

xdev-renovate wants to merge 1 commit intodevelopxdev-software/vaadin-breadcrumbs:developfrom

renovate/org.apache.maven.plugins-maven-source-plugin-3.xxdev-software/vaadin-breadcrumbs:renovate/org.apache.maven.plugins-maven-source-plugin-3.xCopy head branch name to clipboard