improve aec accuracy

[theomonnom]

opening this PR rn to test the changesets CI

[github-actions]

❌ Invalid Changeset Format Detected

One or more changeset files in this PR have an invalid format. Please ensure they adhere to:

• Start with --- and include a closing --- on its own line.
• Each package line must be in the format:
  "package-name": patch|minor|major
• No duplicate package entries allowed.
• A non-empty change description must follow the front matter.

Error details:
.github/next-release/changeset-1185ca82.md: Failed to read file from git branch 'pr_head'.
.github/next-release/changeset-23110904.md: Failed to read file from git branch 'pr_head'.
.github/next-release/changeset-2618f076.md: Failed to read file from git branch 'pr_head'.
.github/next-release/changeset-b5676ad3.md: Failed to read file from git branch 'pr_head'.

[theomonnom]

will depends on livekit/rust-sdks#616 & livekit/python-sdks#404

[longcw]

lgtm!

[longcw]

I think we need to release a new version of python-sdk and update the dep in agents.

[theomonnom]

right, will do rn