Fix comment of the RecordOnly sampling decision #15989

Job	Run time
lint	2m 30s
compatibility-test (1.23.0, ubuntu-latest, 386)	21s
compatibility-test (1.23.0, ubuntu-latest, amd64)	1m 15s
test-bench	27s
compatibility-test (1.23.0, otel-linux-arm64, arm64)	23s
test-concurrent-safe	4m 12s
compatibility-test (1.23.0, macos-13, amd64)	1m 9s
compatibility-test (1.23.0, macos-latest, arm64)	32s
test-coverage	38s
test-race	2m 14s
compatibility-test (1.23.0, windows-latest, 386)	3m 59s
compatibility-test (1.23.0, windows-latest, amd64)	1m 29s
compatibility-test (~1.22.5, ubuntu-latest, 386)	24s
compatibility-test (~1.22.5, ubuntu-latest, amd64)	1m 12s
compatibility-test (~1.22.5, otel-linux-arm64, arm64)	26s
compatibility-test (~1.22.5, macos-13, amd64)	1m 0s
compatibility-test (~1.22.5, macos-latest, arm64)	46s
compatibility-test (~1.22.5, windows-latest, 386)	3m 37s
compatibility-test (~1.22.5, windows-latest, amd64)	2m 30s
codecov	5s
test-compatibility	1s
	29m 10s

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