Improve user feedback if SourceKit-LSP is disabled #425

Job	Run time
Test / Windows (5.9 - windows-2022)	16m 7s
Test / Windows (6.0 - windows-2022)	14m 53s
Test / Linux (5.8 - jammy)	4m 4s
Test / Linux (5.9 - jammy)	3m 56s
Test / Linux (5.10 - jammy)	4m 10s
Test / Linux (6.0 - jammy)	5m 12s
Soundness / Documentation check	0s
Soundness / Broken symlinks check	3s
Soundness / API breakage check	0s
Soundness / Format check	0s
Soundness / License headers check	0s
Soundness / Python lint check	9s
Soundness / Shell check	30s
Soundness / Unacceptable language check	3s
Soundness / YAML lint check	6s
	49m 13s

Provide feedback