Allow GC to collect unneeded slice elements #14767

Job	Run time
lint	2m 3s
test-bench	32s
test-concurrent-safe	3m 52s
compatibility-test (1.23.0, ubuntu-latest, 386)	22s
compatibility-test (1.23.0, ubuntu-latest, amd64)	1m 13s
compatibility-test (1.23.0, otel-linux-arm64, arm64)	26s
compatibility-test (1.23.0, macos-13, amd64)	1m 22s
compatibility-test (1.23.0, macos-latest, arm64)	54s
compatibility-test (1.23.0, windows-latest, 386)	3m 50s
compatibility-test (1.23.0, windows-latest, amd64)	2m 4s
compatibility-test (~1.22.5, ubuntu-latest, 386)	1m 5s
compatibility-test (~1.22.5, ubuntu-latest, amd64)	28s
compatibility-test (~1.22.5, otel-linux-arm64, arm64)	38s
compatibility-test (~1.22.5, macos-13, amd64)	1m 2s
compatibility-test (~1.22.5, macos-latest, arm64)	36s
compatibility-test (~1.22.5, windows-latest, 386)	2m 24s
compatibility-test (~1.22.5, windows-latest, amd64)	4m 18s
test-coverage	49s
test-race	2m 0s
codecov	11s
test-compatibility	1s
	30m 10s

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