Parser looses information about kafka bindings on channel message level

[pkonopacki1]

Describe the bug

When parsing AsyncAPI with the parser, the information about kafka bindings on channel message level are lost, only the type is retrieved.

How to Reproduce

    const {Parser} = require('@asyncapi/parser');
    const {AvroSchemaParser} = require('@asyncapi/avro-schema-parser');
    const parser = new Parser();
    parser.registerSchemaParser(AvroSchemaParser());

    const asyncapiWithAvro = `
asyncapi: 2.0.0
info:
  title: Example with Avro
  version: 0.1.0
channels:
  example:
    publish:
      message:
        schemaFormat: 'application/vnd.apache.avro;version=1.9.0'
        bindings:
          kafka:
            key:
              title: 'AsyncAPI title'
              description: 'AsyncaAPI binding description'
              type: string
              examples:
                - 'example value 1'
                - 'example value 2'
        payload: # The following is an Avro schema in YAML format (JSON format is also supported)
          type: record
          name: User
          namespace: com.company
          doc: User information
          fields:
            - name: displayName
              type: string
            - name: email
              type: string
            - name: age
              type: int`

    const {document} = await parser.parse(asyncapiWithAvro);`

Expected behavior

The parsed document should contain also fields "title", "description", "examples"

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