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-embeddable/build.gradle.kts

@@ -12,6 +12,8 @@ dependencies {
     runtime(commonDep("org.jetbrains.intellij.deps", "trove4j"))
 }
 
+publish()
+
 noDefaultJar()
 
 // dummy is used for rewriting dependencies to the shaded packages in the embeddable compiler
@@ -26,5 +28,3 @@ runtimeJar(embeddableCompiler()) {
 sourcesJar()
 javadocJar()
 
-publish()
-