Bump exec-maven-plugin to 1.5.0
Bump exec-maven-plugin to 1.5.0

atlassian/commonmark-java,jiakuan/commonmark-java,commonmark/commonmark-java,vsch/commonmark-java,vsch/commonmark-java,vsch/commonmark-java,vsch/flexmark-java,vsch/flexmark-java,jiakuan/commonmark-java,commonmark/commonmark-java,atlassian/commonmark-java,vsch/flexmark-java,atlassian/commonmark-java,jiakuan/commonmark-java,vsch/flexmark-java,commonmark/commonmark-java