Explicitly add setuptools #64

	name: build and run Catch tests
	on:
	push:
	branches: [ master ]
	pull_request:
	branches: [ master ]
	jobs:
	build:
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v2
	- name: checkout submodules
	run: git submodule update --init --recursive
	- name: mkdir
	run: mkdir build && cd build
	- name: cmake config
	run: cd build && cmake .. -DCMAKE_BUILD_TYPE=Release
	- name: cmake make
	run: cmake --build build --target ChebToolsCatchTests
	# run tests
	- name: run Catch tests
	run: build/ChebToolsCatchTests
	- name: build python interface
	run: python setup.py build

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