BatchLogRecordProcessor objects are not able to be garbage collected

[robahlgren]

Describe your environment

OS: Debian 12 (Bookworm)
Python version: Python 3.11.2
SDK version: 1.30.0
API version: 1.30.0

What happened?

BatchLogRecordProcessor is not garbage collected, causing a memory leak

Steps to Reproduce

import gc
from opentelemetry.exporter.otlp.proto.grpc._log_exporter import OTLPLogExporter
from opentelemetry.sdk._logs.export import BatchLogRecordProcessor
for _ in range(10):
    processor = BatchLogRecordProcessor(OTLPLogExporter("test"))
    processor.shutdown()
    del processor

gc.collect()
for obj in gc.get_objects():
    if isinstance(obj, BatchLogRecordProcessor):
        print(obj)

Expected Result

No BatchLogRecordProcessor objects should remain

Actual Result

One BatchLogRecordProcessor object is found for each instantiation and consumes ~240KiB of heap as measured by memray

Additional context

No response

Would you like to implement a fix?

None