refactor: change from `os` to `pathlib` #173

	# This workflow will install Python dependencies, run tests and lint with a variety of Python versions
	# For more information see: https://help.github.com/actions/language-and-framework-guides/using-python-with-github-actions

	name: Python on pull request

	on:
	pull_request:

	jobs:
	build:

	runs-on: ${{ matrix.os }}
	strategy:
	matrix:
	os: [ubuntu-latest, macos-latest]
	python-version: [3.8]
	env:
	OS: ${{ matrix.os }}
	PYTHON: ${{ matrix.python-version }}
	defaults:
	run:
	shell: bash -l {0}

	steps:
	- uses: actions/checkout@v4
	- name: Set up mamba ${{ matrix.python-version }}
	uses: mamba-org/setup-micromamba@v1
	with:
	micromamba-version: 'latest'
	environment-file: environment.yml
	init-shell: bash
	environment-name: icesat2_toolkit
	cache-environment: true
	post-cleanup: 'all'
	create-args: >-
	python=${{ matrix.python-version }}
	flake8
	pytest
	pytest-cov
	cython
	- name: Lint with flake8
	run: \|
	# stop the build if there are Python syntax errors or undefined names
	flake8 . --count --select=E9,F63,F7,F82 --show-source --statistics
	# exit-zero treats all errors as warnings. The GitHub editor is 127 chars wide
	flake8 . --count --exit-zero --max-complexity=10 --max-line-length=127 --statistics
	- name: Test with pytest
	run: \|
	pip install --no-deps .
	pytest --username=${{ secrets.EARTHDATA_USERNAME }} \
	--password=${{ secrets.EARTHDATA_PASSWORD }}

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