feat: Update to liboqs 0.12.0 #1040

Job	Run time
ci (macos-latest, stable, true)	6m 27s
ci (macos-latest, stable, false)	6m 54s
ci (macos-latest, beta, true)	7m 21s
ci (macos-latest, beta, false)	6m 36s
ci (macos-latest, nightly, true)	7m 40s
ci (macos-latest, nightly, false)	7m 25s
ci (ubuntu-latest, stable, true)	11m 50s
ci (ubuntu-latest, stable, false)	12m 24s
ci (ubuntu-latest, beta, true)	11m 47s
ci (ubuntu-latest, beta, false)	11m 50s
ci (ubuntu-latest, nightly, true)	11m 39s
ci (ubuntu-latest, nightly, false)	9m 45s
ci (windows-latest, stable, true)	13m 29s
ci (windows-latest, stable, false)	12m 51s
ci (windows-latest, beta, true)	12m 15s
ci (windows-latest, beta, false)	12m 39s
ci (windows-latest, nightly, true)	12m 30s
ci (windows-latest, nightly, false)	11m 40s
	3h 7m 2s

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