Skipping serialization of node attributes in Leader and follower checks

Signed-off-by: RS146BIJAY <rishavsagar4b1@gmail.com>

server/src/main/java/org/opensearch/cluster/node/DiscoveryNode.java

@@ -369,13 +369,15 @@ public void writeTo(StreamOutput out) throws IOException {
             out.writeString(entry.getKey());
             out.writeString(entry.getValue());
         }
+
         out.writeVInt(roles.size());
         for (final DiscoveryNodeRole role : roles) {
             final DiscoveryNodeRole compatibleRole = role.getCompatibilityRole(out.getVersion());
             out.writeString(compatibleRole.roleName());
             out.writeString(compatibleRole.roleNameAbbreviation());
             out.writeBoolean(compatibleRole.canContainData());
         }
+
         out.writeVersion(version);
     }
 
@@ -572,7 +574,6 @@ public XContentBuilder toXContent(XContentBuilder builder, Params params) throws
             builder.field(entry.getKey(), entry.getValue());
         }
         builder.endObject();
-
         builder.endObject();
         return builder;
     }