chore(protocol): bump livekit-protocol/protocol to 8da979b (#921)

Co-authored-by: github-actions <41898282+github-actions[bot]@users.noreply.github.com>

Author: chenghao-mou

.changeset/bump-protocol-amd-v2.md

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+---
+"livekit-protocol": patch
+---
+
+Bump the protocol to livekit/protocol@8da979b: AMD v2 predictions and completion in agent session events (livekit/protocol#1880), the user turn length on the EOT inference start (livekit/protocol#1937), and multi-track video, data, and MCAP for MediaSource egress (livekit/protocol#1882).