[test][compiler] Fix bug in %DisableOptimizationFinalization

After manually triggering finalization we should clear a potential
pending InstallCode interrupt request as there's nothing else to do
and keeping the request would defeat the purpose of the intrinsic.

Fixed: v8:12152
Change-Id: I063959c97c31868864a82c0584cabf779750d10d
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3135578Reviewed-by: Jakob Gruber <jgruber@chromium.org>
Commit-Queue: Georg Neis <neis@chromium.org>
Cr-Commit-Position: refs/heads/main@{#76628}

src/runtime/runtime-test.cc

@@ -660,6 +660,7 @@ RUNTIME_FUNCTION(Runtime_DisableOptimizationFinalization) {
   if (isolate->concurrent_recompilation_enabled()) {
     isolate->optimizing_compile_dispatcher()->AwaitCompileTasks();
     isolate->optimizing_compile_dispatcher()->InstallOptimizedFunctions();
+    isolate->stack_guard()->ClearInstallCode();
     isolate->optimizing_compile_dispatcher()->set_finalize(false);
   }
   return ReadOnlyRoots(isolate).undefined_value();