Disable attachment test until attachments are formally released #665

Job	Run time
Test / Windows (5.9 - windows-2022)	21m 6s
Test / Linux (5.8 - jammy)	4m 4s
Test / Windows (6.0 - windows-2022)	1h 4m 51s
Test / Linux (5.9 - jammy)	4m 29s
Test / Linux (5.10 - jammy)	3m 58s
Test / Linux (6.0 - jammy)	5m 39s
Soundness / Documentation check	0s
Soundness / Unacceptable language check	2s
Soundness / API breakage check	0s
Soundness / Broken symlinks check	5s
Soundness / License headers check	0s
Soundness / YAML lint check	3s
Soundness / Format check	0s
Soundness / Python lint check	4s
Soundness / Shell check	31s
	1h 44m 52s

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