specify aarch64-linux toolchain for Yggdrasil build #93

	name: Downgrade
	on:
	pull_request:
	branches:
	- main
	push:
	branches:
	- main

	concurrency:
	# Skip intermediate builds: always.
	# Cancel intermediate builds: only if it is a pull request build.
	group: ${{ github.workflow }}-${{ github.ref }}
	cancel-in-progress: ${{ startsWith(github.ref, 'refs/pull/') }}

	jobs:
	downgrade:
	# if: ${{ !contains(github.event.head_commit.message, '[skip tests]') && github.base_ref == github.event.repository.default_branch }}
	runs-on: ubuntu-latest
	strategy:
	fail-fast: false
	matrix:
	test_group:
	- core
	- neural_networks
	- integration
	steps:
	- uses: actions/checkout@v4
	- uses: julia-actions/setup-julia@v2
	with:
	version: "1.10"
	- uses: julia-actions/julia-downgrade-compat@v1
	with:
	skip: "ReactantCore"
	- name: "Install Dependencies and Run Tests"
	run: \|
	import Pkg
	Pkg.Registry.update()
	# Install packages present in subdirectories
	dev_pks = Pkg.PackageSpec[]
	for path in ("lib/ReactantCore",)
	push!(dev_pks, Pkg.PackageSpec(; path))
	end
	Pkg.develop(dev_pks)
	Pkg.instantiate()
	Pkg.test(; coverage="user")
	shell: julia --color=yes --code-coverage=user --depwarn=yes --project=. {0}
	id: run_tests
	env:
	JULIA_PKG_SERVER_REGISTRY_PREFERENCE: eager
	REACTANT_TEST_GROUP: ${{ matrix.test_group }}
	- uses: julia-actions/julia-processcoverage@v1
	if: steps.run_tests.outcome == 'success'
	- uses: codecov/codecov-action@v5
	if: steps.run_tests.outcome == 'success'
	with:
	files: lcov.info

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