fix regular mode

Author: DenysKuchma

lib/command/workers/runTests.js

@@ -212,6 +212,8 @@ initPromise = (async function () {
       await runPoolTests()
     } else if (mocha.suite.total()) {
       await runTests()
+      await new Promise(resolve => setTimeout(resolve, 100))
+      parentPort?.close()
     } else {
       // No tests to run, close the worker
       console.error(`[Worker ${workerIndex}] ERROR: No tests found after filtering! Assigned ${tests.length} UIDs but none matched.`)