Bump dubbo from 2.6.0 to 2.6.9 in /code/dubbo-demo#53

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dependabot/maven/code/dubbo-demo/com.alibaba-dubbo-2.6.9caojx-git/learn-java-codes:dependabot/maven/code/dubbo-demo/com.alibaba-dubbo-2.6.9Copy head branch name to clipboard