Marshall Bowers
f003036aec
This PR pins `mdbook` to v0.4.40 to fix an issue with sidebar links having some of their path segments duplicated (e.g., `http://localhost:3000/extensions/extensions/developing-extensions.html`. For reference: - https://zed-industries.slack.com/archives/C04S5TU0RSN/p1745439470378339?thread_ts=1745428671.190059&cid=C04S5TU0RSN - https://zed-industries.slack.com/archives/C04S5TU0RSN/p1753922478290399 Release Notes: - N/A