Release 5.4.2

gradle.properties

@@ -2,7 +2,7 @@ aspectjVersion=1.9.6
 gaeVersion=1.9.83
 springJavaformatVersion=0.0.25
 springBootVersion=2.4.0
-version=5.4.2-SNAPSHOT
+version=5.4.2
 kotlinVersion=1.4.20
 org.gradle.jvmargs=-Xmx3g -XX:MaxPermSize=2048m -XX:+HeapDumpOnOutOfMemoryError
 org.gradle.parallel=true