remove JS files from gitignore #916

Job	Run time
Run checks (ubuntu-latest)	25s
Run checks (macos-latest)	45s
Run checks (windows-latest)	1m 33s
Run tests (ubuntu-latest)	2m 40s
Build library (Android) (aarch64-linux-android)	4m 3s
Run tests (macos-latest)	1m 55s
Build library (linux-aarch64, ubuntu-latest, libaries_askar.so, aarch64-unknown-linux-gnu, true)	3m 34s
Build library (Android) (armv7-linux-androideabi)	3m 59s
Run tests (windows-latest)	4m 33s
Build library (linux-x86_64, ubuntu-latest, libaries_askar.so, x86_64-unknown-linux-gnu, true)	3m 45s
Build library (Android) (i686-linux-android)	3m 59s
Build library (iOS) (aarch64-apple-ios)	2m 18s
Build library (darwin-universal, macos-latest, libaries_askar.dylib, darwin-universal, beta)	3m 40s
Build library (Android) (x86_64-linux-android)	3m 45s
Build library (iOS) (aarch64-apple-ios-sim)	2m 14s
Build library (windows-x86_64, windows-latest, aries_askar.dll, x86_64-pc-windows-msvc)	4m 26s
Build library (iOS) (x86_64-apple-ios)	2m 11s
Create iOS xcframework	29s
Create library (Android)	13s
Create iOS and Android release assets	0s
Build and test Python wrapper (linux-aarch64, 3.8)	18s
Build and test Python wrapper (linux-x86_64, 3.8)	21s
Build and test Python wrapper (darwin-universal, 3.8)	47s
Build and test Python wrapper (windows-x86_64, 3.8)	50s
Successful build	1s
	52m 44s

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