use `mode = PKGMODE_MANIFEST` in tests #2611

	name: format

	on:
	workflow_dispatch:
	pull_request:
	push:
	branches: [master, v2]

	concurrency:
	group: ${{ github.workflow }}-${{ github.head_ref \|\| github.run_id }}
	cancel-in-progress: true

	jobs:
	check:
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v4
	- uses: julia-actions/setup-julia@latest
	- name: Install dependencies
	run: \|
	using Pkg
	Pkg.add("JuliaFormatter")
	shell: julia --color=yes {0}

	- name: Format Julia files
	run: \|
	using JuliaFormatter
	format(["RecipesBase", "RecipesPipeline", "PlotsBase", "src", "test", "GraphRecipes", "StatsPlots"])
	shell: julia --color=yes --compile=min -O0 {0}

	- name: suggester / JuliaFormatter
	if: success() && github.ref == 'refs/heads/master'
	uses: reviewdog/action-suggester@v1
	with:
	tool_name: JuliaFormatter
	fail_on_error: true

	# reviewdog/action-suggester not using `cleanup` flag?
	- name: Cleanup
	if: success() \|\| failure()
	run: \|
	git checkout -- .
	git clean --force
	shell: bash

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