[test] Remove unnecessary usages of BasicTester #3621

Job	Run time
ci (ubuntu-22.04, 21, 2.13.15, 2.4, 7.0) / Integration Tests	14m 37s
ci (ubuntu-22.04, 21, 2.13.15, 2.4, 7.0) / ci	18m 19s
ci (ubuntu-22.04, 21, 2.13.15, 2.4, 7.0) / Formatting	1m 54s
ci (ubuntu-22.04, 21, 2.13.15, 2.4, 7.0) / compile project with mill	4m 31s
ci (ubuntu-22.04, 21, 2.13.15, 2.4, 7.0) / Benchmarking Sanity Check	2m 37s
ci (ubuntu-22.04, 21, 2.13.15, 2.4, 7.0) / Standard Library (2.13.15)	3m 52s
ci (ubuntu-22.04, 21, 2.13.15, 2.4, 7.0) / Build Mdoc & Website	6m 52s
ci (ubuntu-22.04, 21, 2.13.15, 2.4, 7.0) / Test Scala-CLI Example / Build and Test	2m 31s
check tests	1s
all tests passed	1s
publish	7m 46s
Deploy Website	6s
	1h 3m 7s

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