Lucas Manuel Rodriguez 9f3e05c06c Fix data race detected by Splunk tests in CI (#48778) ...

Fixes data race detected in
https://github.com/fleetdm/fleet/actions/runs/28769705097/job/85300822820.

<!-- This is an auto-generated comment: release notes by coderabbit.ai
-->

## Summary by CodeRabbit

* **Bug Fixes**
* Improved reliability of log delivery by ensuring buffered log data is
copied before being sent, preventing intermittent issues when batches
are processed.
* Reduced the risk of log entries being corrupted or lost during
transmission.

<!-- end of auto-generated comment: release notes by coderabbit.ai -->

2026-07-06 14:42:03 -03:00

..

mock

…

filesystem_test.go

…

filesystem.go

…

firehose_test.go

…

firehose.go

…

kafkarest_test.go

…

kafkarest.go

…

kinesis_test.go

…

kinesis.go

…

lambda_test.go

…

lambda.go

…

logging.go

…

nanodep.go

…

nats_test.go

…

nats.go

…

pubsub.go

…

splunk_integration_test.go

…

splunk_test.go

…

splunk.go

…

stdout.go

…

webhook_test.go

…

webhook.go

…