fix: watching.close() is slow

lib/scenarios/build-plugin.cjs

@@ -1,5 +1,5 @@
 const WARMUP_BUILDS = 10;
-const TOTAL_BUILDS = 20;
+const TOTAL_BUILDS = 110;
 
 module.exports = class BuildPlugin {
 	apply(compiler) {
@@ -8,22 +8,16 @@ module.exports = class BuildPlugin {
 		compiler.hooks.watchRun.tap("BuildPlugin", () => {
 			isWatching = true;
 		});
-		(compiler.hooks.afterDone || compiler.hooks.done).tap("BuildPlugin", () => {
-			setTimeout(() => {
-				if (counter === WARMUP_BUILDS) console.log("#!# start");
-				if (isWatching && counter <= TOTAL_BUILDS) console.log("#!# next");
-			}, 10);
+		compiler.hooks.afterDone.tap("BuildPlugin", () => {
+			if (counter === WARMUP_BUILDS) console.log("#!# start");
+			if (isWatching && counter <= TOTAL_BUILDS) console.log("#!# next");
 		});
 		compiler.hooks.done.tap("BuildPlugin", stats => {
 			if (isWatching) {
 				counter++;
 				if (counter <= WARMUP_BUILDS) return;
 				if (counter > TOTAL_BUILDS) {
-					if (compiler.watching) {
-						compiler.watching.close();
-					} else {
-						process.nextTick(() => process.exit(0));
-					}
+					process.nextTick(() => process.exit(0));
 				}
 			}
 			const { logging, time } = stats.toJson({
@@ -69,10 +63,7 @@ module.exports = class BuildPlugin {
 			if (type !== "time") return;
 			const ms = args[1] * 1000 + args[2] / 1000000;
 			console.log(
-				`#!# ${name}.${args[0].replace(
-					/restore cache content \d.+$/,
-					"restore cache content"
-				)} = ${ms}`
+				`#!# ${name}.${args[0].replace(/restore cache content \d.+$/, "restore cache content")} = ${ms}`
 			);
 		};
 	}