fix(participant): added stopOnUnpublish value to UnpublishTrackRequest #371

Job	Run time
Check for changes	4s
Formatting	25s
REUSE-3.2	10s
Test (18)	21s
Test (20)	15s
Test (22)	17s
Test (latest)	18s
stable - x86_64-apple-darwin - node@20	7m 2s
stable - aarch64-apple-darwin - node@20	5m 9s
stable - x86_64-pc-windows-msvc - node@20	13m 3s
stable - x86_64-unknown-linux-gnu - node@20	7m 4s
stable - aarch64-unknown-linux-gnu - node@20	10m 17s
Release	0s
	44m 25s

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