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

Picks up the AMD v2 agent session events (livekit/protocol#1880) for the
multi-turn AMD in livekit/agents#6202, and releases livekit-protocol as a
patch.

Author: chenghao-mou

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

@@ -0,0 +1,5 @@
+---
+"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).