chore(deps): update dtolnay/rust-toolchain digest to efa25f7

[renovate]

This PR contains the following updates:

Package	Type	Update	Change
dtolnay/rust-toolchain	action	digest	6d653ac → efa25f7

---

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 is behind base branch, 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 was generated by Mend Renovate. View the repository job log.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 46.75%. Comparing base (8e718f3) to head (d407eae).
⚠️ Report is 1 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #428   +/-   ##
=======================================
  Coverage   46.75%   46.75%           
=======================================
  Files           2        2           
  Lines         509      509           
  Branches      509      509           
=======================================
  Hits          238      238           
  Misses        270      270           
  Partials        1        1           

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

🚀 New features to boost your workflow:

• ❄️ Test Analytics: Detect flaky tests, report on failures, and find test suite problems.