[ENH] set up CI #13

	---
	name: apptainer build

	on:
	push:
	branches: [master]
	pull_request:

	concurrency:
	group: ${{ github.workflow }}-${{ github.ref }}
	cancel-in-progress: true

	jobs:
	build:
	strategy:
	matrix:
	image: [Singularity_MCR.def, Singularity.def]
	fail-fast: false
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v4
	with:
	fetch-depth: 0
	- uses: eWaterCycle/setup-apptainer@v2
	with:
	apptainer-version: 1.3.0
	- name: build sif image
	run: apptainer build cat12.sif ${{ matrix.image }}

Provide feedback