[FIX] Fix watch db being started on Micro Services env (#27435)

apps/meteor/server/routes/health.ts

 import { WebApp } from 'meteor/webapp';
 
-import { isLastDocDelayed } from '../startup/watchDb';
+import { isRunningMs } from '../lib/isRunningMs';
 
-WebApp.rawConnectHandlers.use('/health', function (_req, res) {
+WebApp.rawConnectHandlers.use('/health', async function (_req, res) {
 	res.setHeader('Cache-Control', 'no-cache, no-store, must-revalidate');
 	res.setHeader('Pragma', 'no-cache');
 	res.setHeader('Expires', 0);
 	res.setHeader('Content-Type', 'text/plain');
 
-	if (isLastDocDelayed()) {
-		res.writeHead(500);
-		res.end('not healthy');
-		return;
+	if (!isRunningMs()) {
+		const { isLastDocDelayed } = await import('../startup/watchDb');
+
+		if (isLastDocDelayed()) {
+			res.writeHead(500);
+			res.end('not healthy');
+			return;
+		}
 	}
 
 	res.end('ok');