feat(deps): update renovate/renovate docker tag to v31.31.0

This MR contains the following updates:

Package	Update	Change
renovate/renovate	minor	31.28.5 -> 31.31.0

---

Release Notes

renovatebot/renovate

v31.31.0

Features

• pip_requirements: added support for packages from a git repository (#​13414) (150d01a)

v31.30.0

Features

• autodiscover: allow usage of regex patterns (#​13243) (e406cd1)

Bug Fixes

• Clarify digest upgrade ignore message (#​13108) (c2643fb)

v31.29.1

31.29.1 (2022-01-18)

Bug Fixes

• move cheap-glitch/mi-cron to production deps (#​13632) (0eecd38), closes #​13630

Code Refactoring

• datasource/adoptium-java: Strict null checks (#​13444) (85fda0c)

---

Configuration

📅 Schedule: At any time (no schedule defined).

🚦 Automerge: Enabled.

♻ Rebasing: Whenever MR is behind base branch, or you tick the rebase/retry checkbox.

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

---

• If you want to rebase/retry this MR, click this checkbox.

---

This MR has been generated by Renovate Bot.