[artifactory-release] Release version 6.0.0-M1

Author: spring-builds

gradle.properties

@@ -1,6 +1,6 @@
-version=6.0.0-SNAPSHOT
+version=6.0.0-M1
 org.gradle.jvmargs=-Xmx1536M -Dfile.encoding=UTF-8
+kotlin.jvm.target.validation.mode=IGNORE
 org.gradle.caching=true
 org.gradle.parallel=true
 kotlin.stdlib.default.dependency=false
-kotlin.jvm.target.validation.mode=IGNORE