reset hasScheduled for logs batch processor

Author: lcian

sentry/src/main/java/io/sentry/logger/LoggerBatchProcessor.java

@@ -80,6 +80,7 @@ private void maybeSchedule(boolean forceSchedule, boolean immediately) {
         try {
           scheduledFlush = executorService.schedule(new BatchRunnable(), flushAfterMs);
         } catch (RejectedExecutionException e) {
+          hasScheduled = false;
           options
               .getLogger()
               .log(SentryLevel.WARNING, "Logs batch processor flush task rejected", e);