src: extra-semi warning in node_platform.h

https://clang.llvm.org/docs/DiagnosticsReference.html#wextra-semi

PR-URL: nodejs#26330
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Luigi Pinca <luigipinca@gmail.com>
Reviewed-By: Beth Griggs <Bethany.Griggs@uk.ibm.com>
Reviewed-By: Ruben Bridgewater <ruben@bridgewater.de>

src/node_platform.h

@@ -62,7 +62,7 @@ class PerIsolatePlatformData :
   void PostIdleTask(std::unique_ptr<v8::IdleTask> task) override;
   void PostDelayedTask(std::unique_ptr<v8::Task> task,
                        double delay_in_seconds) override;
-  bool IdleTasksEnabled() override { return false; };
+  bool IdleTasksEnabled() override { return false; }
 
   void Shutdown();