[Bug][Sort] InLongMsg with inner format raw deserialize will throw NullPointException

[thesumery]

What happened

when config format is inLongMsg, and it's inner format is raw format, receive data and deserialize will throw nullpointException.

What you expected to happen

deserialize successful.

How to reproduce

1. prepare a flink environment(flink 1.13.6)
2. put all dependency into flink lib
3. start flink standalone service
4. execute flink sql client

CREATE TABLE `table_b_s5825b746-225f-40ff-afaf-eb273c64dcf3`(
    `__content__` STRING)
    WITH (
    'inlong.metric' = 's5825b746-225f-40ff-afaf-eb273c64dcf3&b_s5825b746-225f-40ff-afaf-eb273c64dcf3&b_s5825b746-225f-40ff-afaf-eb273c64dcf3',
    'connector' = 'pulsar-inlong',
    'inlong-msg.inner.format' = 'raw',
    'format' = 'inlong-msg',
    'inlong-msg.raw.charset' = 'UTF-8',
    'inlong-msg.raw.endianness' = 'big-endian',
    'inlong-msg.ignore-parse-errors' = 'false',
    'generic' = 'true',
    'admin-url' = 'localhost:8080',
    'service-url' = 'localhost:6650',
    'topic' = 'pulsar-op488nga8meo/namespace_1257305158_20220826111254509798/b_s5825b746-225f-40ff-afaf-eb273c64dcf3',
    'scan.startup.mode' = 'earliest'
);
select * from table_b_s5825b746-225f-40ff-afaf-eb273c64dcf3;

5. start pulsar service and produce data into pulsar
   produce inlong msg data into pulsar.

Environment

No response

InLong version

1.3.0

InLong Component

InLong Sort

Are you willing to submit PR?

• Yes, I am willing to submit a PR!

Code of Conduct

• I agree to follow this project's Code of Conduct