Doesn't work with buffered logging when multiple JSONs could be put into on chunk separated by newline

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### Bug report

```markdown
I would suggest to convert the library to pino transport using https://github.com/pinojs/pino-abstract-transport. Now it is very easy to crash a lambda after `JSON.parse` in the destination.ts is trying to parse a chunk containing smth like

{...}\n{...}
```
```

Comienza leyendo destination.ts y la documentación de pino-abstract-transport para entender cómo se procesan los chunks almacenados en búfer. Reproduce el fallo con un chunk que contenga dos objetos JSON separados por un salto de línea y, a continuación, verifica que el logging almacenado en búfer ya no se bloquee al procesarlo.

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