chore: Add wowkflow to update snapshots #1

	name: snapshot
	on:
	push:
	branches:
	- chore-add-snapshot-update-workflow
	workflow_dispatch:
	inputs:
	dryrun:
	type: boolean
	description: Set `true` to skip diff commits.
	default: true
	jobs:
	snapshot:
	runs-on: ${{ matrix.os }}
	environment: ci
	strategy:
	fail-fast: false
	matrix:
	os: [ubuntu-latest]
	permissions:
	contents: write
	steps:
	- uses: actions/checkout@v4
	with:
	ref: ${{ github.event.inputs.target_branch }}
	lfs: true

	# Build projects
	- uses: ./.github/actions/build
	- run: dotnet build -c Release samples/extensions/build

	# Update snapshots
	- run: dotnet test -c Release -f net8.0 --no-build --filter Stage=Snapshot
	working-directory: test/docfx.Snapshot.Tests
	env:
	BUILD_SERVER: false # Accept changes automatically

	# Output git diff to Job Summary
	- run: git diff --name-status >> $GITHUB_STEP_SUMMARY

	# Commit updated snapshot contents
	- uses: stefanzweifel/git-auto-commit-action@v5
	if: ${{ github.event.inputs.dryrun }} != 'true'
	with:
	commit_message: 'test(snapshot): update snapshots ${{ github.sha }} for ${{ matrix.os }}'

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