Add error handling middleware #33

Job	Run time
Swift 6 Language Mode	0s
Soundness / Broken symlinks check	3s
Soundness / API breakage check	50s
Integration test / Windows (6.0)	1s
Integration test / Windows (nightly-6.0)	3s
Soundness / Documentation check	1m 1s
Integration test / Windows (nightly-main)	2s
Soundness / License headers check	6s
Soundness / Unacceptable language check	3s
Soundness / Python lint check	9s
Soundness / Format check	33s
Integration test / Linux (5.9)	1m 41s
Soundness / Shell check	38s
Integration test / Linux (5.10)	1m 41s
Integration test / Linux (6.0)	1m 49s
Soundness / YAML lint check	4s
Integration test / Linux (nightly-6.0)	2m 6s
Integration test / Linux (nightly-main)	32s
Unit tests / Unit tests / Linux (5.9)	48s
Unit tests / Unit tests / Linux (5.10)	46s
Unit tests / Unit tests / Linux (6.0)	57s
Unit tests / Unit tests / Linux (nightly-6.0)	1m 0s
Unit tests / Unit tests / Linux (nightly-main)	30s
Unit tests / Unit tests / Windows (6.0)	3s
Unit tests / Unit tests / Windows (nightly-6.0)	1s
Unit tests / Unit tests / Windows (nightly-main)	2s
	15m 29s

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