feat(deps): update renovate/renovate docker tag

This MR contains the following updates:

Package	Update	Change
renovate/renovate	minor	31.38.4 -> 31.40.0
renovate/renovate	minor	31.38.4-slim -> 31.39.1-slim

---

Release Notes

renovatebot/renovate

v31.40.0

Features

• expose sourceRepo, sourceRepoOrg and sourceRepoName (#​13620) (49f5ac0)

v31.39.1

31.39.1 (2022-01-21)

Bug Fixes

• readd missing config properties (#​13716) (3b65140)

v31.39.0

Features

• workers/branch: allow to define a blocked label (#​12164) (a133bb9)

Code Refactoring

• Separate file addition and deletion data structures (#​13638) (0c4d8c7)
• Use union type for SkipReason (#​13702) (4f18d76)
• workers: Make reuse logic more consistent (#​13701) (7424ae3)

Miscellaneous Chores

• fix gradle wrapper tests (22c40fa)

---

Configuration

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

🚦 Automerge: Enabled.

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

👻 Immortal: This MR will be recreated if closed unmerged. Get config help if that's undesired.

---

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

---

This MR has been generated by Renovate Bot.