[Javascript] Fix broken package entrypoints #901

Job	Run time
cpp-lib-build (macos-11, clang, ON)	1m 26s
cpp-lib-build (macos-11, clang, OFF)	1m 40s
cpp-lib-build (macos-11, gcc, ON)	2m 55s
cpp-lib-build (macos-11, gcc, OFF)	3m 11s
cpp-lib-build (ubuntu-20.04, clang, ON)	1m 24s
cpp-lib-build (ubuntu-20.04, clang, OFF)	1m 52s
cpp-lib-build (ubuntu-20.04, gcc, ON)	1m 17s
cpp-lib-build (ubuntu-20.04, gcc, OFF)	2m 0s
cpp-lib-build (windows-2022, clang, ON)	10m 0s
cpp-lib-build (windows-2022, clang, OFF)	10m 12s
cpp-lib-build (windows-2022, cl)	7m 1s
build (macos-11, tool)	2m 2s
build (macos-11, cpp)	32m 37s
build (macos-11, csharp)	11m 47s
build (macos-11, dart)	5m 59s
build (macos-11, go)	5m 17s
build (macos-11, java)	2m 20s
build (macos-11, javascript)	2m 46s
build (macos-11, typescript)	18m 47s
build (macos-11, php)	2m 38s
build (macos-11, python3)	2m 9s
build (ubuntu-20.04, tool)	1m 13s
build (ubuntu-20.04, cpp)	21m 42s
build (ubuntu-20.04, csharp)	10m 34s
build (ubuntu-20.04, dart)	6m 12s
build (ubuntu-20.04, go)	3m 23s
build (ubuntu-20.04, java)	1m 23s
build (ubuntu-20.04, javascript)	2m 16s
build (ubuntu-20.04, typescript)	17m 16s
build (ubuntu-20.04, php)	1m 58s
build (ubuntu-20.04, python3)	1m 19s
build (windows-2022, tool)	1m 38s
build (windows-2022, cpp)	39m 46s
build (windows-2022, csharp)	12m 57s
build (windows-2022, dart)	10m 35s
build (windows-2022, go)	9m 53s
build (windows-2022, java)	3m 55s
build (windows-2022, javascript)	3m 41s
build (windows-2022, typescript)	42m 12s
build (windows-2022, php)	3m 13s
build (windows-2022, python3)	5m 36s
	5h 30m 2s

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