changing pixel masks path to use Oleg's #799

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

	name: Build and Test

	on: [push, pull_request]

	jobs:
	build:
	runs-on: ${{ matrix.os }}
	continue-on-error: ${{ matrix.allow_failure }}

	strategy:
	fail-fast: false
	matrix:
	python-version: ["3.10", "3.11", "3.12"]
	allow_failure: [false]
	os: [ubuntu-latest]
	include:
	- python: "3.12"
	os: ubuntu-latest
	allow_failure: true

	steps:
	- uses: actions/checkout@v4

	- name: Clone lvmcore repository
	uses: actions/checkout@v4
	with:
	repository: sdss/lvmcore
	path: lvmcore

	- name: Set LVMCORE_DIR envvar
	run:
	echo "LVMCORE_DIR=$GITHUB_WORKSPACE/lvmcore" >> "$GITHUB_ENV"

	- name: Set up Python ${{ matrix.python-version }}
	uses: actions/setup-python@v4
	with:
	python-version: ${{ matrix.python-version }}
	cache: 'pip'
	cache-dependency-path: '**/setup.cfg'

	- name: Install dependencies
	run: \|
	python -m pip install --upgrade pip
	pip install wheel
	pip install .[dev]

	- name: Lint with ruff
	run: \|
	pip install ruff
	ruff check . --extend-exclude "examples/" --extend-exclude "docs/nb/"

	- name: Test with pytest
	run: \|
	pytest

Provide feedback