[Chore] Update the es version in the docs. (#4499)

* update ES version in doc.

* fix error annotation.

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Co-authored-by: lightzhao <[email protected]>

seatunnel-connectors-v2/connector-elasticsearch/src/main/java/org/apache/seatunnel/connectors/seatunnel/elasticsearch/serialize/ElasticsearchRowSerializer.java

@@ -38,7 +38,7 @@
 import java.util.Map;
 import java.util.function.Function;
 
-/** use in elasticsearch version >= 7.* */
+/** use in elasticsearch version >= 2.x and <= 8.x */
 public class ElasticsearchRowSerializer implements SeaTunnelRowSerializer {
     private final SeaTunnelRowType seaTunnelRowType;
     private final ObjectMapper objectMapper = new ObjectMapper();