refactor: ensure ssr branches are included in esm-bundler build

packages/runtime-core/src/apiWatch.ts

@@ -280,7 +280,7 @@ function doWatch(
 
   // in SSR there is no need to setup an actual effect, and it should be noop
   // unless it's eager
-  if (__NODE_JS__ && isInSSRComponentSetup) {
+  if (__SSR__ && isInSSRComponentSetup) {
     // we will also not call the invalidate callback (+ runner is not set up)
     onInvalidate = NOOP
     if (!cb) {