chore(deps): update peaceiris/actions-mdbook action to v2

[renovate]

This PR contains the following updates:

Package	Type	Update	Change
peaceiris/actions-mdbook	action	major	v1 -> v2

---

Release Notes

peaceiris/actions-mdbook (peaceiris/actions-mdbook)

v2

Compare Source

---

Configuration

📅 Schedule: Branch creation - At any time (no schedule defined), Automerge - At any time (no schedule defined).

🚦 Automerge: Disabled by config. Please merge this manually once you are satisfied.

♻ Rebasing: Whenever PR becomes conflicted, or you tick the rebase/retry checkbox.

🔕 Ignore: Close this PR and you won't be reminded about this update again.

---

• If you want to rebase/retry this PR, check this box

---

This PR has been generated by Mend Renovate. View repository job log here.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 72.86%. Comparing base (e86376c) to head (f116229).

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #574   +/-   ##
=======================================
  Coverage   72.86%   72.86%           
=======================================
  Files         188      188           
  Lines       18918    18918           
=======================================
  Hits        13785    13785           
  Misses       5133     5133           

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.