[runners-flink] apache#28258 Wait infinitely if the duration value is…

… less than 1ms in FlinkDetachedRunnerResult

runners/flink/src/main/java/org/apache/beam/runners/flink/FlinkDetachedRunnerResult.java

@@ -92,7 +92,7 @@ public State waitUntilFinish(Duration duration) {
     long start = System.currentTimeMillis();
     long durationInMillis = duration.getMillis();
     State state = State.UNKNOWN;
-    while ((System.currentTimeMillis() - start) < durationInMillis) {
+    while (durationInMillis < 1 || (System.currentTimeMillis() - start) < durationInMillis) {
       state = getState();
       if (state.isTerminal()) {
         return state;