fix: restore PixbufUtils.mask used by prism_core #181

	name: CI build for the morandi-rb gem

	on:
	push:
	pull_request:
	branches: [ master ]

	jobs:
	build-dev:
	runs-on: ubuntu-latest
	name: ensures the dev environment image builds
	steps:
	- name: checkout repo
	uses: actions/checkout@v2
	- name: build container
	uses: docker/build-push-action@v2
	with:
	context: .
	file: ./Dockerfile
	push: false
	rubocop:
	runs-on: ubuntu-latest
	steps:
	- name: checkout repo
	uses: actions/checkout@v2
	- name: lint code with rubocop
	uses: andrewmcodes/[email protected]
	env:
	GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
	tests:
	runs-on: ubuntu-latest
	strategy:
	matrix:
	ruby: [2.0, 2.3, 2.7, 3.0]
	name: install dependencies and run tests
	steps:
	- name: install image processing dependencies
	run: \|
	sudo apt-get install -yqq liblcms2-utils libglib2.0-dev libgtk2.0-dev libgdk-pixbuf2.0-dev
	- name: set up ruby environment
	uses: ruby/setup-ruby@v1
	with:
	ruby-version: ${{ matrix.ruby }}
	bundler-cache: true
	- name: checkout repo
	uses: actions/checkout@v2
	- name: install ruby dependencies
	run: \|
	gem install bundler
	bundle install
	- name: build the extension
	run: bundle exec rake compile
	- name: run the tests
	run: bundle exec rspec

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