message: Upgrade to Spring Boot 2.0.6 for the plugins
diff: <jhipster-dependencies.version>2.0.28</jhipster-dependencies.version>
  <!-- The spring-boot version should match the one managed by
  https://mvnrepository.com/artifact/io.github.jhipster/jhipster-dependencies/${jhipster-dependencies.version} -->
  - <spring-boot.version>2.0.5.RELEASE</spring-boot.version>
  + <spring-boot.version>2.0.6.RELEASE</spring-boot.version>
  <!-- The hibernate version should match the one managed by
  https://mvnrepository.com/artifact/org.springframework.boot/spring-boot-dependencies/${spring-boot.version} -->
  <hibernate.version>5.2.17.Final</hibernate.version>
  