Update module github.com/jackc/pgx/v4 to v4.18.1

[renovate[bot]]

This PR contains the following updates:

Package	Type	Update	Change
github.com/jackc/pgx/v4	require	patch	v4.18.0 -> v4.18.1

---

Release Notes

jackc/pgx

### [`v4.18.1`](https://togithub.com/jackc/pgx/compare/v4.18.0...v4.18.1) [Compare Source](https://togithub.com/jackc/pgx/compare/v4.18.0...v4.18.1)

---

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.