refactor(ecmascript-plugins): update serverdirective signature (verce…

…l/turborepo#4886)

### Description

Update missing signatures.

crates/turbopack-ecmascript-plugins/src/transform/directives/server.rs

@@ -4,16 +4,23 @@ use swc_core::{
     ecma::ast::{ModuleItem, Program},
     quote,
 };
+use turbo_tasks::primitives::StringVc;
 use turbopack_ecmascript::{CustomTransformer, TransformContext, UnsupportedServerActionIssue};
 
 use super::is_server_module;
 
 #[derive(Debug)]
-pub struct ServerDirectiveTransformer;
+pub struct ServerDirectiveTransformer {
+    // ServerDirective is not implemented yet and always reports an issue.
+    // We don't have to pass a valid transition name yet, but the API is prepared.
+    transition_name: StringVc,
+}
 
 impl ServerDirectiveTransformer {
-    pub fn new() -> Self {
-        Self
+    pub fn new(transition_name: &StringVc) -> Self {
+        Self {
+            transition_name: transition_name.clone(),
+        }
     }
 }