fix: do not declare _typecheck[_test] target when using tsc as transpiler #2044

Job	Run time
matrix-prep	3s
test-worker (7, 7.1.1)	6m 1s
test (7, 7.1.1, 1, ubuntu, .)	3m 32s
test (7, 7.1.1, 1, ubuntu, e2e/bzlmod)	22s
test (7, 7.1.1, 1, ubuntu, e2e/external_dep)	21s
test (7, 7.1.1, 1, ubuntu, e2e/external_dep/app)	20s
test (7, 7.1.1, 1, ubuntu, e2e/worker)	45s
test (7, 7.1.1, 0, ubuntu, .)	3m 28s
test (7, 7.1.1, 0, ubuntu, e2e/external_dep)	21s
test (7, 7.1.1, 0, ubuntu, e2e/external_dep/app)	26s
test (7, 7.1.1, 0, ubuntu, e2e/worker)	42s
test (7, 7.1.1, 0, ubuntu, e2e/workspace)	19s
test (6, 6.5.0, 0, ubuntu, e2e/external_dep)	22s
test (6, 6.5.0, 0, ubuntu, e2e/external_dep/app)	24s
test (6, 6.5.0, 0, ubuntu, e2e/worker)	47s
test (6, 6.5.0, 0, ubuntu, e2e/workspace)	20s
conclusion	2s
	18m 35s

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