Enable strict concurrency #33

Job	Run time
Benchmarks / Construct Benchmarks matrix	3s
Cxx interop / Construct Cxx interop matrix	3s
Unit tests / Construct unit test matrix	3s
Check cmake lists / Windows (6.0)	1s
Check cmake lists / Windows (nightly-6.0)	1s
Check cmake lists / Windows (nightly-main)	1s
Check cmake lists / Linux (5.9)	37s
Soundness / API breakage check	2m 5s
Check cmake lists / Linux (5.10)	33s
Check cmake lists / Linux (6.0)	38s
Check cmake lists / Linux (nightly-6.0)	44s
Soundness / Documentation check	1m 42s
Soundness / Unacceptable language check	2s
Check cmake lists / Linux (nightly-main)	36s
Soundness / Broken symlinks check	5s
Soundness / License headers check	7s
Soundness / Format check	37s
Soundness / Shell check	40s
Soundness / Python lint check	4s
Soundness / YAML lint check	5s
Benchmarks / Benchmarks / Linux (5.9)	8m 25s
Benchmarks / Benchmarks / Linux (5.10)	8m 19s
Benchmarks / Benchmarks / Linux (6.0)	8m 4s
Benchmarks / Benchmarks / Linux (nightly-6.0)	8m 56s
Benchmarks / Benchmarks / Linux (nightly-main)	8m 13s
Unit tests / Unit tests / Linux (5.9)	3m 16s
Unit tests / Unit tests / Linux (5.10)	25s
Unit tests / Unit tests / Linux (6.0)	3m 22s
Unit tests / Unit tests / Linux (nightly-6.0)	3m 38s
Unit tests / Unit tests / Linux (nightly-main)	3m 42s
Cxx interop / Cxx interop / Linux (5.9)	1m 23s
Cxx interop / Cxx interop / Linux (5.10)	1m 20s
Cxx interop / Cxx interop / Linux (6.0)	1m 28s
Cxx interop / Cxx interop / Linux (nightly-6.0)	1m 49s
Cxx interop / Cxx interop / Linux (nightly-main)	1m 51s
	1h 12m 58s

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