Bump dubbo from 2.6.2 to 2.6.9 in /b2c-parent#29

dependabot[bot] wants to merge 1 commit intomasterjufeng98/java-master:masterfrom

dependabot/maven/b2c-parent/com.alibaba-dubbo-2.6.9jufeng98/java-master:dependabot/maven/b2c-parent/com.alibaba-dubbo-2.6.9Copy head branch name to clipboard