[Gradle] plugins version by variable

// gradle.properties
springBootVersion=2.6.7

// settings.gradle.kts
pluginManagement {
    val springBootVersion: String by settings

    plugins {
        id("org.springframework.boot") version springBootVersion
    }
}

// build.gradle.kts
plugins {
    id("org.springframework.boot")
}

https://stackoverflow.com/questions/37555196/in-gradle-how-to-use-a-variable-for-a-plugin-version/72336787#72336787

In gradle, how to use a variable for a plugin version?

https://docs.gradle.org/current/userguide/plugins.html#sec:plugin_version_management

Using Gradle Plugins