Bump dubbo from 2.6.0 to 2.6.9#12

dependabot[bot] wants to merge 1 commit intodeveloprhwayfun/spring-boot-learning-examples:developfrom

dependabot/maven/com.alibaba-dubbo-2.6.9rhwayfun/spring-boot-learning-examples:dependabot/maven/com.alibaba-dubbo-2.6.9Copy head branch name to clipboard