Stabilize CI test runs with deterministic environment settings #71

Job	Run time
Discover regression systems	48s
Unit (windows-2025, 3.13)	1m 51s
Unit (ubuntu-24.04, 3.13)	48s
Unit (macos-15, 3.12)	47s
Unit (ubuntu-24.04, 3.12)	53s
Unit (macos-15, 3.14)	1m 5s
Unit (ubuntu-24.04, 3.14)	56s
Unit (windows-2025, 3.12)	1m 37s
Unit (windows-2025, 3.14)	2m 22s
Unit (macos-15, 3.13)	1m 3s
Pre-commit	1m 6s
Docs	1m 7s
Coverage	1m 2s
Regression (fast) • cyclohexane	5m 24s
Regression (fast) • ethyl-acetate	4m 36s
Regression (fast) • dna	2m 20s
Regression (fast) • benzaldehyde	5m 44s
Regression (fast) • methane	2m 8s
Regression (fast) • benzene	4m 35s
Regression (fast) • water	2m 25s
Regression (fast) • octonol	6m 11s
Regression (fast) • methanol	2m 39s
	51m 27s

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