feat: add TypeSpec tsp-server support #5463

Job	Run time
test (ubuntu-latest, 27.2, false)	2m 0s
test (ubuntu-latest, 28.2, false)	2m 23s
test (ubuntu-latest, 29.4, false)	2m 20s
test (macos-latest, 28.2, false)	3m 53s
test (macos-latest, 29.4, false)	3m 54s
test (windows-latest, 27.2, false)	3m 13s
test (windows-latest, 28.2, false)	3m 46s
test (windows-latest, 29.4, false)	3m 47s
test (ubuntu-latest, snapshot, true)	1m 19s
test (macos-latest, snapshot, true)	2m 46s
test (windows-latest, snapshot, true)	5m 10s
	34m 31s

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