[exporterhelper] BenchmarkMemoryQueueWaitForResult test is broken

[jackgopack4]

Component(s)

exporter/exporterhelper

What happened?

Describe the bug
BenchmarkMemoryQueueWaitForResult in exporter/exporterhelper/internal/queuebatch/memory_queue_test.go crashes on a negative waitgroup counter.

Steps to reproduce
Download any branch, run

go test -benchmem -run=^$ -bench ^BenchmarkMemoryQueueWaitForResult$ go.opentelemetry.io/collector/exporter/exporterhelper/internal/queuebatch

What did you expect to see?
Test passes or fails

What did you see instead?
Test crashes,

panic: sync: negative WaitGroup counter

goroutine 19 [running]:
sync.(*WaitGroup).Add(0x0?, 0x0?)
	/Users/john.peterson/.goenv/versions/1.23.8/src/sync/waitgroup.go:64 +0x108
sync.(*WaitGroup).Done(...)
	/Users/john.peterson/.goenv/versions/1.23.8/src/sync/waitgroup.go:89
go.opentelemetry.io/collector/exporter/exporterhelper/internal/queuebatch.BenchmarkMemoryQueueWaitForResult.func1()
	/Users/john.peterson/otel/opentelemetry-collector/exporter/exporterhelper/internal/queuebatch/memory_queue_test.go:209 +0xe0
created by go.opentelemetry.io/collector/exporter/exporterhelper/internal/queuebatch.BenchmarkMemoryQueueWaitForResult in goroutine 3
	/Users/john.peterson/otel/opentelemetry-collector/exporter/exporterhelper/internal/queuebatch/memory_queue_test.go:203 +0x200
exit status 2
FAIL	go.opentelemetry.io/collector/exporter/exporterhelper/internal/queuebatch	0.475s
FAIL

Collector version

v0.125.0

Environment information

Environment

OS: darwin 15.4.1
Arch: aarm64

OpenTelemetry Collector configuration

n/a

Log output

Additional context

No response

[github-actions]

Pinging code owners:

• exporter/exporterhelper: @bogdandrutu @dmitryax

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