chore(deps): update renovate/renovate docker tag to v31.3.1

This MR contains the following updates:

Package	Type	Update	Change
renovate/renovate	Kustomization	minor	31.2.0 -> 31.3.1

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Release Notes

renovatebot/renovate

v31.3.1

31.3.1 (2021-12-16)

Build System

• deps: update dependency markdown-it to v12.3.0 (#​13155) (ede1d2b)

v31.3.0

Features

• autodiscover: allow array for autodiscoverfilter (#​13100) (a0a7703)
• github actions: discover workflow files in subfolders (#​13143) (0bf92c5)
• managers/gradle: add support for plugin short syntax in gradle TOML catalogs (#​13147) (feb3f95)

Bug Fixes

• config: add package rule to preserveSemverRanges (#​13137) (6a027d2)

Documentation

• use cases: improve and simplify text (#​13142) (015a6b7)

Tests

• manager/gradle-wrapper: fix snapshot regression in gradle-wrapper (#​13144) (ab3dc4e)
• manager/gradle-wrapper: migrate to fs.readLocalFile (#​13123) (395cab2)
• util/git: Use global timeout setting (#​13141) (992d3f6)
• workers/pr: Explicit snapshots for release notes (#​13145) (8d1ac78)

Miscellaneous Chores

• deps: update dependency ts-jest to v27.1.1 (#​13114) (971ef92)
• deps: update node.js to 4be99ea (#​13153) (15ebe5c)
• revert git timeout change (7b91912)

v31.2.2

31.2.2 (2021-12-15)

Bug Fixes

• issue where helm index.yaml cannot be read (#​13127) (3ac95a2), closes /github.com/renovatebot/renovate/blob/d0d482155dbc8ec6d901105c246fb1542b6a3b00/lib/datasource/helm/index.ts#L65

Miscellaneous Chores

• deps: update actions/upload-artifact action to v2.3.1 (#​13128) (fb4f6ba)

Documentation

• update references to renovate/renovate to v31 (#​13129) (ae46e9e)

v31.2.1

31.2.1 (2021-12-15)

Bug Fixes

• util/emoji: Update emoji-related deps (#​13122) (d0d4821)

Code Refactoring

• helm: repository -> helmRepository (#​13109) (3fabb3b)
• npm: update locked dep file structure (#​13103) (7373292)

Miscellaneous Chores

• deps: update dependency @​types/eslint to v8 (#​13116) (e632615)
• deps: update dependency @​types/node to v16 (#​13117) (903ffd0)
• deps: update dependency graphql to v15.8.0 (#​13105) (46930dd)

Tests

• manager/gomod: migrate to fs.readLocalFile (#​13099) (83b87c0)

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