fix: unsubscribe FFI queue when the room listen task ends #1518

Job	Run time
Build RTC wheels (AMD64)	1m 12s
Build RTC wheels (x86_64 arm64)	1m 12s
Generating protobuf	20s
Build RTC wheels (x86_64)	51s
Build RTC wheels (aarch64)	1m 28s
Make RTC sdist	15s
Test (ubuntu-latest, Python 3.14) / Test (ubuntu-latest, Python 3.14)	2m 1s
Test (ubuntu-latest, Python 3.12) / Test (ubuntu-latest, Python 3.12)	1m 49s
Test (macos-latest, Python 3.12) / Test (macos-latest, Python 3.12)	1m 46s
Test (ubuntu-latest, Python 3.9) / Test (ubuntu-latest, Python 3.9)	1m 53s
Test (ubuntu-latest, Python 3.10) / Test (ubuntu-latest, Python 3.10)	1m 40s
Test (macos-latest, Python 3.9) / Test (macos-latest, Python 3.9)	2m 10s
Test (ubuntu-latest, Python 3.11) / Test (ubuntu-latest, Python 3.11)	1m 48s
Test (windows-latest, Python 3.12) / Test (windows-latest, Python 3.12)	1m 57s
Test (windows-latest, Python 3.9) / Test (windows-latest, Python 3.9)	3m 8s
Test (windows-latest, Python 3.14) / Test (windows-latest, Python 3.14)	1m 57s
Test (ubuntu-latest, Python 3.13) / Test (ubuntu-latest, Python 3.13)	1m 34s
Test (macos-latest, Python 3.14) / Test (macos-latest, Python 3.14)	2m 1s
Publish RTC release	0s
docs	0s
	29m 2s

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