spring-boot-maven-plugin not found 해결 방법

<artifactId>spring-boot-maven-plugin</artifactId>

spring-boot-maven-plugin not found 가 표시되는 경우에 spring-boot 의 version 을 추가한다.

<parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>2.6.6</version>
        <relativePath/> <!-- lookup parent from repository -->
</parent>