Add convergence-rate CI for WENO5/3/1 and MUSCL2 #31

	name: Convergence

	on:
	push:
	branches: [master]
	pull_request:
	workflow_dispatch:

	env:
	OMPI_MCA_rmaps_base_oversubscribe: 1

	jobs:
	convergence:
	name: "Convergence"
	runs-on: ubuntu-latest
	timeout-minutes: 240

	steps:
	- uses: actions/checkout@v4

	- name: Setup Ubuntu
	run: \|
	sudo apt update -y
	sudo apt install -y cmake gcc g++ python3 python3-dev \
	openmpi-bin libopenmpi-dev

	- name: Setup Python
	uses: actions/setup-python@v5
	with:
	python-version: "3.12"

	- name: Build MFC
	run: ./mfc.sh build -j 4

	- name: Run convergence tests
	run: ./mfc.sh test --only Convergence --no-build -j 1

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