fix(ingestion/kafka): OAuth callback execution

[sid-acryl]

Execute callback provided in config.connection.consumer_config.oauth_cb

source:
  type: "kafka"
  config:
    # Set the custom schema registry implementation class
    schema_registry_class: "datahub.ingestion.source.confluent_schema_registry.ConfluentSchemaRegistry"
    # Coordinates
    connection:
      bootstrap: "broker:9092"
      schema_registry_url: http://localhost:8081
      consumer_config:
        security.protocol: "SASL_PLAINTEXT"
        sasl.mechanism: "OAUTHBEARER"
        oauth_cb: "oauth:create_token"
# sink configs

[hsheth2]

CI appears to be failing

[hsheth2]

Docs generation appears to be failing - likely something isn't properly escaped in the markdown

lint has been fixed