fix core integration test yet again

test/core.test.integration.mjs

@@ -318,17 +318,15 @@ runners.forEach(function([runnerName, appname]) {
       let checkListening = await sendRequestToApplication(listening)
       assert.strictEqual(checkListening.body.version, 'v1')
 
-      while (!hasLogLine(/core is running/)) {
-        await catchupLog(10)
+      while (!hasLogLine(/is up and running/)) {
+        await setTimeout(10)
         if (processor.exitCode !== null) {
           throw new Error('Process exited with ' + processor.exitCode)
         }
       }
-
-      while (!hasLogLine(/is up and running/)) {
-        await setTimeout(10)
-      }
       
+      await setTimeout(50)
+
       catchupLog()
 
       let db = JSON.parse(await fs.readFile(util.getPathFromRoot('./db.json')))