use same executor thread for single evaluator #41

	name: main
	on: push
	env:
	DOIT_NUM_PROCESS: 0
	jobs:
	main:
	runs-on: ubuntu-latest
	steps:
	- name: checkout repository
	uses: actions/checkout@v2
	- name: install python
	uses: actions/setup-python@v1
	with:
	python-version: "3.10"
	- name: install python requirements
	run: \|
	python -m pip install --upgrade pip
	pip install -e '.[dev]'
	- name: doit check
	run: doit check
	- name: doit test
	run: doit test

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