Convert all test files from JavaScript to TypeScript #1566

Job	Run time
check-and-lint	2m 13s
adapter-tests (20.x, ubuntu-latest)	49s
adapter-tests (22.x, windows-latest)	5m 31s
adapter-tests (22.x, ubuntu-latest)	42s
adapter-tests (24.x, windows-latest)	4m 34s
adapter-tests (22.x, macos-latest)	1m 27s
adapter-tests (24.x, ubuntu-latest)	50s
adapter-tests (20.x, windows-latest)	7m 44s
adapter-tests (20.x, macos-latest)	1m 27s
auto-merge	15s
	25m 32s

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