Fix flakey XCTest parallel test failure reporting #570

Job	Run time
Test / Linux (5.8 - jammy)	4m 20s
Test / Linux (5.8 - jammy)	4m 18s
Test / Windows (5.9 - windows-2022)	13m 14s
Test / Windows (5.9 - windows-2022)	12m 26s
Test / Linux (5.9 - jammy)	4m 53s
Test / Linux (5.9 - jammy)	4m 49s
Test / Windows (6.0 - windows-2022)	13m 12s
Test / Windows (6.0 - windows-2022)	13m 8s
Test / Linux (5.10 - jammy)	4m 27s
Test / Linux (5.10 - jammy)	4m 16s
Test / Windows (nightly-6.1 - windows-2022)	13m 9s
Test / Windows (nightly-6.1 - windows-2022)	15m 0s
Test / Linux (6.0 - jammy)	5m 50s
Test / Linux (6.0 - jammy)	5m 53s
Soundness / Unacceptable language check	5s
Soundness / Unacceptable language check	3s
Soundness / API breakage check	0s
Soundness / API breakage check	0s
Soundness / Broken symlinks check	3s
Soundness / Broken symlinks check	3s
Soundness / Documentation check	0s
Soundness / Documentation check	0s
Soundness / License headers check	0s
Soundness / License headers check	0s
Soundness / Shell check	39s
Soundness / Shell check	35s
Soundness / Format check	0s
Soundness / Format check	0s
Soundness / YAML lint check	4s
Soundness / YAML lint check	3s
Soundness / Python lint check	7s
Soundness / Python lint check	6s
	2h 0m 43s

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