use tempdir for graceful terminator socket when env not set #45

	---
	name: CI
	on:
	workflow_dispatch:
	push:
	branches:
	- main
	tags: ["*"]
	paths:
	- "src/**"
	- "test/**"
	- "Project.toml"
	- ".github/workflows/CI.yaml"
	pull_request:
	paths:
	- "src/**"
	- "test/**"
	- "Project.toml"
	- ".github/workflows/CI.yaml"
	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:
	test:
	name: Julia ${{ matrix.version }} - ${{ matrix.runs-on }} - ${{ matrix.arch }} - ${{ matrix.threads}} threads
	# These permissions are needed to:
	# - Delete old caches: https://github.com/julia-actions/cache#cache-retention
	permissions:
	actions: write
	contents: read
	runs-on: ${{ matrix.runs-on }}
	strategy:
	fail-fast: false
	matrix:
	version:
	- "1.6" # Earliest version of Julia that the package is compatible with
	- "1" # Latest Julia release
	runs-on:
	- ubuntu-latest
	arch:
	- x64
	threads:
	- 1
	env:
	JULIA_NUM_THREADS: ${{ matrix.threads }}
	steps:
	- uses: actions/checkout@v4
	- uses: julia-actions/setup-julia@v2
	with:
	version: ${{ matrix.version }}
	arch: ${{ matrix.arch }}
	- uses: julia-actions/cache@v2
	- uses: julia-actions/julia-runtest@v1
	- uses: julia-actions/julia-processcoverage@v1
	- uses: codecov/codecov-action@5ecb98a3c6b747ed38dc09f787459979aebb39be # v4.3.1
	with:
	files: lcov.info
	token: ${{ secrets.CODECOV_TOKEN }}

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