fix(mac,linux): convert VideoMetadata.duration to milliseconds #137

Job	Run time
js	1m 5s
lint	34s
wasmJs	1m 24s
ios	1m 4s
android	1m 45s
build-natives / macos	28s
build-natives / windows	1m 4s
build-natives / linux (ubuntu-latest, x86-64)	40s
build-natives / linux (ubuntu-24.04-arm, aarch64)	1m 32s
jvm	1m 30s
	11m 6s

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