add standlone protoc-gen-js npm package (@protocolbuffers/protoc-gen-… #63

Job	Run time
build	8m 56s
package (windows-2022, x64_x86_windows, dist_zip)	14m 33s
package (macos-13, darwin_x86_64, dist_zip)	17m 11s
package (macos-14, darwin_arm64, dist_zip)	12m 19s
package (windows-2022, x64_windows, dist_zip)	14m 31s
	1h 7m 30s

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