Build: Fix artifacts signing for maven central

With gradle > 5.0 `publish()` helper call should be done before
`noDefaultJar()` or any other artifact hacks, otherwise singing plugin doesn't sign any jars

libraries/scripting/jvm/build.gradle.kts

@@ -17,6 +17,8 @@ sourceSets {
     "test" {}
 }
 
+publish()
+
 val jar = runtimeJar()
 val sourcesJar = sourcesJar()
 val javadocJar = javadocJar()
@@ -26,7 +28,3 @@ dist()
 ideaPlugin {
     from(jar, sourcesJar)
 }
-
-standardPublicJars()
-
-publish()