Add manual control to NIOLockedValueBox #132

Job	Run time
Integration tests / 5.8	13m 7s
Integration tests / 5.9	14m 18s
Integration tests / 5.10	14m 7s
Integration tests / nightly-6.0	16m 56s
Soundness / API breakage check	2m 39s
Integration tests / nightly-main	17m 29s
Cxx interop / 5.8	1m 9s
Benchmarks / 5.8	2m 34s
Cxx interop / 5.9	1m 8s
Benchmarks / 5.9	3m 47s
Cxx interop / 5.10	1m 8s
Soundness / Documentation check	1m 56s
Soundness / Unacceptable language check	2s
Cxx interop / nightly-6.0	1m 43s
Benchmarks / 5.10	3m 39s
Cxx interop / nightly-main	1m 42s
Benchmarks / nightly-6.0	4m 18s
Soundness / Broken symlinks check	3s
Benchmarks / nightly-main	4m 33s
Soundness / Format check	0s
Soundness / License headers check	8s
Unit tests / 5.8	3m 6s
Unit tests / 5.9	3m 16s
Unit tests / 5.10	3m 19s
Unit tests / nightly-6.0	58s
Unit tests / nightly-main	1m 15s
	1h 58m 20s

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