Update to Gradle 6.2

- Build Scan plugin is now Gradle Enterprise plugin applied in settings
- Compile task dependencies are now defined through classpath
- Test fixture publication can be disabled through public API

Closes gh-24384

settings.gradle

@@ -4,6 +4,11 @@ pluginManagement {
 		maven { url 'https://repo.spring.io/plugins-release' }
 	}
 }
+
+plugins {
+	id("com.gradle.enterprise").version("3.1.1")
+}
+
 apply from: "$rootDir/gradle/build-cache-settings.gradle"
 
 include "spring-aop"