chore(deps): update dependency alembic to v1.18.4

[renovate]

This PR contains the following updates:

Package	Change	Age	Confidence
alembic (changelog)	1.12.0 → 1.18.4

---

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 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 0.00%. Comparing base (bc5fe49) to head (3c0b272).

Additional details and impacted files

@@          Coverage Diff          @@
##            main     #12   +/-   ##
=====================================
  Coverage   0.00%   0.00%           
=====================================
  Files          1       1           
  Lines          2       2           
=====================================
  Misses         2       2           

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