[cdc] support debezium-json format with schema for kafka sync action

### Search before asking

- [X] I searched in the [issues](https://github.com/apache/incubator-paimon/issues) and found nothing similar.

### Motivation

support debezium-json format with schema for kafka sync action.

we can get the schema from the json format ,the format like this :
```
{
"schema": {...},
"payload": {
"before": {
"id": 111,
"name": "scooter",
"description": "Big 2-wheel scooter",
"weight": 5.18
},
"after": {
"id": 111,
"name": "scooter",
"description": "Big 2-wheel scooter",
"weight": 5.15
},
"source": {...},
"op": "u",
"ts_ms": 1589362330904,
"transaction": null
}
}
```

### Solution

_No response_

### Anything else?

_No response_

### Are you willing to submit a PR?

- [ ] I'm willing to submit a PR!

Start by locating the Kafka sync action and its handling of Debezium JSON messages, then inspect how schemas are currently obtained. No implementation files or tests are named in the issue; done means the action accepts the shown schema-and-payload format and has coverage for the supported behavior.

Written by the indexing model from the issue text.