docs: add buildkitd.toml docs new gc options #310

	# this workflow runs the remote validate bake target from docker/docs to check
	# if yaml reference docs and markdown files used in this repo are still valid
	# https://github.com/docker/docker.github.io/blob/98c7c9535063ae4cd2cd0a31478a21d16d2f07a3/docker-bake.hcl#L34-L36
	name: docs-upstream

	concurrency:
	group: ${{ github.workflow }}-${{ github.ref }}
	cancel-in-progress: true

	on:
	push:
	branches:
	- 'master'
	- 'v[0-9]*'
	paths:
	- '.github/workflows/docs-upstream.yml'
	- 'docs/buildkitd.toml.md'
	- 'docs/attestations/slsa-definitions.md'
	- 'docs/attestations/attestation-storage.md'
	- 'frontend/dockerfile/docs/reference.md'
	- 'frontend/dockerfile/docs/rules/**'
	pull_request:
	paths:
	- '.github/workflows/docs-upstream.yml'
	- 'docs/buildkitd.toml.md'
	- 'docs/attestations/slsa-definitions.md'
	- 'docs/attestations/attestation-storage.md'
	- 'frontend/dockerfile/docs/reference.md'
	- 'frontend/dockerfile/docs/rules/**'

	jobs:
	validate:
	uses: docker/docs/.github/workflows/validate-upstream.yml@919a9b9104a34a40b30d116529bcce589a544d1c # pin for artifact v4 support: https://github.com/docker/docs/pull/19220
	with:
	module-name: moby/buildkit

Provide feedback