Elasticsearch Parallel Bulk Helper not picked up as Spans

**Describe the bug**: ...
```
@elasticapm.capture_span()
def index(docs):
helpers.bulk(client, docs)
```

This is instrumented:

This:
```
@elasticapm.capture_span()
def index(docs):
deque(
helpers.parallel_bulk(
client,
docs,
chunk_size=5000,
thread_count=4,
queue_size=4,
raise_on_error=False,
raise_on_exception=False,
),
maxlen=0,
)
```

is not instrumented:

Python 3.11, Elasticsearch language client for Python 8.6.1