Update module github.com/ardanlabs/conf/v3 to v3.1.6

[renovate[bot]]

This PR contains the following updates:

Package	Type	Update	Change
github.com/ardanlabs/conf/v3	require	patch	v3.1.5 -> v3.1.6

---

Release Notes

ardanlabs/conf (github.com/ardanlabs/conf/v3)

### [`v3.1.6`](https://togithub.com/ardanlabs/conf/compare/v3.1.5...v3.1.6) [Compare Source](https://togithub.com/ardanlabs/conf/compare/v3.1.5...v3.1.6)

---

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.