Update dependency livekit-client to v2.18.9 #63

Job	Run time
Create release PR	0s
Build API	0s
Build RTC sdist	0s
Build RTC wheels (${{ matrix.archs }})	0s
Publish livekit-protocol	0s
Publish livekit (RTC)	0s
Build Protocol	0s
Build RTC docs	0s
Tag release	-1s
Publish livekit-api	-1s
Build Protocol docs	-1s
Build API docs	0s
Detect package	-10s
	-13s

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