fix proto3 bug

client/src/main/java/com/alibaba/otter/canal/client/impl/SimpleCanalConnector.java

@@ -323,7 +323,7 @@ public class SimpleCanalConnector implements CanalConnector {
         Packet p = Packet.parseFrom(data);
         switch (p.getType()) {
             case MESSAGES: {
-                if (!p.getCompression().equals(Compression.NONE)) {
+                if (!p.getCompression().equals(Compression.NONE) && !p.getCompression().equals(Compression.COMPRESSIONCOMPATIBLEPROTO2)) {
                     throw new CanalClientException("compression is not supported in this connector");
                 }