Add explicit python3 prefix to all python paths in test suite #154

	name: Regression Tests

	on: [push, pull_request]

	jobs:
	build:
	name: Python ${{ matrix.python-version }} (${{ matrix.group }}/20)
	runs-on: ubuntu-22.04

	strategy:
	matrix:
	python-version: ["3.10"]
	group: [1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20]

	steps:
	- uses: actions/checkout@v3

	- name: Set up Python ${{ matrix.python-version }}
	uses: actions/setup-python@v4
	with:
	python-version: ${{ matrix.python-version }}

	- name: Install Icarus Verilog
	run: \|
	sudo apt install -y --no-install-recommends iverilog

	- name: Install Python dependencies
	run: \|
	python -m pip install --upgrade pip
	pip install tox tox-gh-actions

	- name: Test with tox
	run: tox -- -n auto --verbose --splits 20 --group ${{ matrix.group }} --splitting-algorithm least_duration

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