Chore: Update the comment content in pom.xml to be consistent

[yuluo-yx]

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There are currently two license annotations in pom.xml.

such as: https://github.com/apache/dubbo/blob/2cf54f7947596abbf92f907853a2df7cbfc8b7fb/dubbo-spring-boot/pom.xml#L3

https://github.com/apache/dubbo/blob/2cf54f7947596abbf92f907853a2df7cbfc8b7fb/dubbo-spring-boot/dubbo-spring-boot-starters/pom.xml#L3

They should need to be unified, if it needs to be updated please assign me and I will complete.