関連ワード:  spring boot starter for java 21    spring boot starter parent for java 21    spring boot starter version for java 21    spring boot starter web for java 21    spring boot starter parent version for java 21    spring boot starter parent maven for java 21    spring-boot-starter-test version for java 21    spring boot starter test java 21    spring boot starter webflux java 21    spring boot starter parent latest version for java 21