Bump dubbo from 2.6.2 to 2.6.12 in /order-service-consumer#4

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dependabot/maven/order-service-consumer/com.alibaba-dubbo-2.6.12deisignemoon/DubboStudyNote:dependabot/maven/order-service-consumer/com.alibaba-dubbo-2.6.12Copy head branch name to clipboard