Update woodpeckerci/plugin-docker-buildx Docker tag to v3.1.0

This PR contains the following updates:

Package	Update	Change
woodpeckerci/plugin-docker-buildx (source)	minor	`3.0.1` -> `3.1.0`

Release Notes

woodpecker-plugins/docker-buildx (woodpeckerci/plugin-docker-buildx)

### [`v3.1.0`](https://codeberg.org/woodpecker-plugins/docker-buildx/releases/tag/v3.1.0) [Compare Source](https://codeberg.org/woodpecker-plugins/docker-buildx/compare/v3.0.1...v3.1.0) ##### Features - Improve support for `cache_to` and `cache_from` & add `cache_images` ([#129](https://togithub.com/woodpecker-plugins/docker-buildx/issues/129)) ##### Dependencies - chore(deps): update docker docker tag to v25.0.2

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woodpecker-ci / plugin-extend-env

Update woodpeckerci/plugin-docker-buildx Docker tag to v3.1.0 #29

Release Notes

Configuration