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

prepare/compiler-client-embeddable/build.gradle.kts

@@ -49,6 +49,8 @@ projectTest {
     }
 }
 
+publish()
+
 noDefaultJar()
 
 runtimeJar(task<ShadowJar>("shadowJar")) {
@@ -57,5 +59,3 @@ runtimeJar(task<ShadowJar>("shadowJar")) {
 
 sourcesJar()
 javadocJar()
-
-publish()