Use node:timers/promises for timeout

lib/processors/minifier.js

@@ -6,6 +6,7 @@ import workerpool from "workerpool";
 import Resource from "@ui5/fs/Resource";
 import {getLogger} from "@ui5/logger";
 const log = getLogger("builder:processors:minifier");
+import {setTimeout as setTimeoutPromise} from "node:timers/promises";
 
 const debugFileRegex = /((?:\.view|\.fragment|\.controller|\.designtime|\.support)?\.js)$/;
 
@@ -29,7 +30,7 @@ function getPool(taskUtil) {
 			maxWorkers
 		});
 		taskUtil.registerCleanupTask((force) => {
-			const attemptPoolTermination = () => {
+			const attemptPoolTermination = async () => {
 				log.verbose(`Attempt to terminate the workerpool...`);
 
 				if (!pool) {
@@ -40,9 +41,8 @@ function getPool(taskUtil) {
 				// convenient. When all the (available) workers are idle, then it's safe to terminate.
 				const {idleWorkers, totalWorkers} = pool.stats();
 				if (idleWorkers !== totalWorkers && !force) {
-					return new Promise((resolve) =>
-						setTimeout(() => resolve(attemptPoolTermination()), 100) // Retry after a while
-					);
+					await setTimeoutPromise(100); // Wait a bit workers to finish and try again
+					return attemptPoolTermination();
 				}
 
 				const poolToBeTerminated = pool;