Release 6.4.0-M4

gradle.properties

@@ -15,7 +15,7 @@
 #
 
 springBootVersion=3.3.3
-version=6.4.0-SNAPSHOT
+version=6.4.0-M4
 samplesBranch=main
 org.gradle.jvmargs=-Xmx3g -XX:+HeapDumpOnOutOfMemoryError
 org.gradle.parallel=true