add preconnect audio buffer API to LocalAudioTrack #1371

Job	Run time
Generating protobuf	23s
Build RTC wheels (x86_64 arm64)	1m 3s
Build RTC wheels (AMD64)	1m 31s
Build RTC wheels (x86_64)	50s
Make RTC sdist	16s
Build RTC wheels (aarch64)	1m 17s
Test (ubuntu-latest, Python 3.14) / Test (ubuntu-latest, Python 3.14)	29s
Test (ubuntu-latest, Python 3.12) / Test (ubuntu-latest, Python 3.12)	32s
Test (ubuntu-latest, Python 3.13) / Test (ubuntu-latest, Python 3.13)	27s
Test (macos-latest, Python 3.14) / Test (macos-latest, Python 3.14)	38s
Test (macos-latest, Python 3.12) / Test (macos-latest, Python 3.12)	44s
Test (windows-latest, Python 3.9) / Test (windows-latest, Python 3.9)	1m 45s
Test (ubuntu-latest, Python 3.11) / Test (ubuntu-latest, Python 3.11)	30s
Test (windows-latest, Python 3.12) / Test (windows-latest, Python 3.12)	1m 12s
Test (windows-latest, Python 3.14) / Test (windows-latest, Python 3.14)	1m 8s
Test (macos-latest, Python 3.9) / Test (macos-latest, Python 3.9)	1m 5s
Test (ubuntu-latest, Python 3.10) / Test (ubuntu-latest, Python 3.10)	36s
Test (ubuntu-latest, Python 3.9) / Test (ubuntu-latest, Python 3.9)	38s
Publish RTC release	0s
docs	0s
	15m 4s

Provide feedback