Update actions/labeler action to v4

[renovate[bot]]

This PR contains the following updates:

Package	Type	Update	Change
actions/labeler	action	major	v3.1.0 -> v4.0.0

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Release Notes

actions/labeler

### [`v4.0.0`](https://togithub.com/actions/labeler/releases/v4.0.0) [Compare Source](https://togithub.com/actions/labeler/compare/v3.1.0...v4.0.0) - [ Update to node 16 runtime](https://togithub.com/actions/labeler/pull/319)

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Configuration

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