Record how long the toolcache cleanup takes in telemetry

Co-authored-by: Copilot App <223556219+Copilot@users.noreply.github.com>

lib/entry-points.js

@@ -185372,13 +185372,14 @@ async function tryDeleteToolcacheBundles({
   if (!isGitHubHostedRunner(env) || !isToolcacheOnWorkspaceFilesystem(logger2)) {
     return;
   }
+  const startTime = import_perf_hooks4.performance.now();
   const result = await deleteToolcacheBundles({ env, logger: logger2 });
   addNoLanguageDiagnostic(
     void 0,
     makeTelemetryDiagnostic(
       "codeql-action/toolcache-bundle-cleanup",
       "Toolcache CodeQL bundle cleanup",
-      { ...result }
+      { ...result, durationMs: durationMsSince(startTime) }
     )
   );
 }