fix(deps): update renovate/renovate docker tag to v31.28.3

This MR contains the following updates:

Package	Update	Change
renovate/renovate	patch	31.28.1 -> 31.28.3
renovate/renovate	patch	31.28.2-slim -> 31.28.3-slim

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Release Notes

renovatebot/renovate

v31.28.3

31.28.3 (2022-01-17)

Bug Fixes

• renovate: Print preset validation errors so that they don't get lost (#​13597) (4a332e0)

Miscellaneous Chores

• deps: lock file maintenance (#​13582) (899216f)
• deps: update dependency @​types/luxon to v2.0.9 (#​13578) (893bae8)

Code Refactoring

• datasource/go: Restrict parameters for "getDigest" (#​13584) (2fd071c)
• rez: ensure strict null check (#​13334) (9f7d024)

Documentation

• add forking-renovate to list of distributions (#​13535) (a6af88e)
• update references to renovate/renovate to v31.28.2 (#​13581) (7d66678)

v31.28.2

31.28.2 (2022-01-16)

Bug Fixes

• gradle: Support gradle versions as templates (#​13576) (ee55afb)

Continuous Integration

• add node v16 tests (#​12244) (0fdede3)

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