Audio engine observer fixes (#571) · livekit/client-sdk-swift@20f8c3e

Build: Sources/LiveKit/E2EE/KeyProvider.swift#L89

stored property 'rtcKeyProvider' of 'Sendable'-conforming class 'BaseKeyProvider' has non-sendable type 'LKRTCFrameCryptorKeyProvider'

Build: Sources/LiveKit/Track/AudioManager.swift#L104

'ConfigureAudioSessionFunc' is deprecated

Build: Sources/LiveKit/Track/AudioManager.swift#L107

'TrackState' is deprecated

Build: Sources/LiveKit/Types/Options/CameraCaptureOptions.swift#L30

stored property 'device' of 'Sendable'-conforming class 'CameraCaptureOptions' has non-sendable type 'AVCaptureDevice?'

Build: Sources/LiveKit/Types/Options/CameraCaptureOptions.swift#L37

stored property 'preferredFormat' of 'Sendable'-conforming class 'CameraCaptureOptions' has non-sendable type 'AVCaptureDevice.Format?'

Build: Sources/LiveKit/Core/DataChannelPair.swift#L144

'init(serializedData:extensions:partial:options:)' is deprecated: replaced by 'init(serializedBytes:extensions:partial:options:)'