removing environment activation step #16

	name: unit-tests
	on: [push]

	jobs:
	build-and-unit-test:
	runs-on: ubuntu-latest

	steps:
	- uses: actions/checkout@v3
	- name: Setup Conda
	uses: conda-incubator/setup-miniconda@v2
	with:
	miniforge-variant: Mambaforge
	miniforge-version: latest
	activate-environment: openmcyclus-env
	environment-file: environment.yml
	use-mamba: true

	- name: Conda config
	run: \|
	conda config --env --set pip_interop_enabled True

	- name: Update Environment
	run: \|
	pip install pytest
	mamba env update -n openmcyclus-env -f environment.yml

	- name: Install numpy
	run: \|
	sudo apt install python3-pip
	pip3 install numpy

	- name: Install OpenMC cross section library
	run:
	$GITHUB_WORKSPACE/openmc-xs.bash

	- name: Install OpenMC from Mamba
	run:
	mamba install openmc

	- name: Install OpenMC cross section library
	run:
	echo "OPENMC_CROSS_SECTIONS=cross_sections.xml" >> $GITHUB_ENV

	- name: Install OpenMCyclus
	run: \|
	pip install .

	- name: Checking the environment
	run: conda info

	- name: Run Tests
	run: \|
	conda info
	pytest tests/unit_tests/test_depletion.py

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