SpringBoot CONTRIBUTING.adoc contains broken link to spring-javaformat-intellij-idea-plugin

CONTRIBUTING.adoc contains in section Install the Spring Formatter plugin a link to Maven Central Repository which only provides outdated versions. Instead it should link to https://repo.spring.io/release/io/spring/javaformat/spring-javaformat-intellij-idea-plugin/, see https://github.com/spring-io/spring-javaformat#intellij-idea.

Comment From: snicoll

Good catch, the module was renamed recently and we forgot to fix the link here.