Log exceptions processing messages as occur (#1011)

This should help make debugging issues easier when investigating issues processing messages and provide more precise time of exception in logs.

Author: nem0-97

powertools-sqs/src/main/java/software/amazon/lambda/powertools/sqs/SqsUtils.java

@@ -497,6 +497,7 @@ public static <R> List<R> batchProcessor(final SQSEvent event,
                 batchContext.addSuccess(message);
             } catch (Exception e) {
                 batchContext.addFailure(message, e);
+                LOG.error("Encountered issue processing message: {}", message.getMessageId(), e);
             }
         }