Bump livekit from 0.7.52 to 0.7.53

[dependabot]

Bumps livekit from 0.7.52 to 0.7.53.

Release notes

Sourced from livekit's releases.

livekit 0.7.53 (2026-07-17)

Features

• Add a pre-encoded video publish path: a passthrough video encoder and encoded video frame buffer in webrtc-sys, and EncodedVideoFrame/EncodedVideoCodec/EncodedFrameType publish APIs with a VideoEncoderBackend::PreEncoded backend in libwebrtc. WebRTC rate-control targets and keyframe requests are forwarded to encoded sources, and pre-encoded AV1 and H265 access units are validated on ingest.

Fixes

• Emit room EOS when the underlying LiveKit room event channel closes after a server-initiated disconnect, and ignore duplicate disconnect events during teardown.
• Don't log an expected publisher data channel close as unexpected - #1224 (@​longcw)

Simplify x-google-start-bitrate logic and update degradation preference defaults

• Start bitrate: use min(90% of target, 1 Mbps) instead of adaptive network hints
• Remove slow connection detection and network quality hints on reconnect
• Default degradation preference by track source:
  • Camera: MaintainFramerate (smoother video)
  • Screenshare: MaintainResolution (clarity for text/UI)
  • Other: Balanced

Commits

• da3ee00 Release packages (#1264)
• e283d9f fix: don't log expected publisher data channel close as unexpected (#1224)
• 97c18fa Fix knope changeset detection (#1263)
• b4996b5 Bugfix: Emit room EOS when event channel closes, ignore duplicate disconnect ...
• 626bd79 Bump rust-toolchain from 1.96.1 to 1.97.0 (#1251)
• a7a2625 tighten changesets check for release PR (#1255)
• See full diff in compare view

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