Update decomposition.pxi #230

	name: Build Package

	on: [push]

	jobs:
	Build-Package-Linux:
	runs-on: ubuntu-20.04
	env:
	SCIPOPTDIR: ${{ github.workspace }}/scip_install
	strategy:
	matrix:
	python-version: ["3.8", "3.9", "3.10", "3.11", "3.12", "3.13"]
	steps:
	- name: Check out repository code
	uses: actions/checkout@v4

	- name: Update and install wget
	run: \|
	sudo apt-get update && sudo apt-get install --yes wget

	- name: Download libscip-linux.zip
	run: \|
	wget https://github.com/jurgen-lentz/scipoptsuite-deploy/releases/download/v0.5.0/libscip-linux.zip -O gcg.zip

	- name: Unzip the downloaded file
	run: \|
	sudo apt-get install --yes unzip
	unzip gcg.zip

	- name: Setup python ${{ matrix.python-version }}
	uses: actions/setup-python@v4
	with:
	python-version: ${{ matrix.python-version }}

	- name: Prepare python environment
	run: \|
	python -m pip install --upgrade pip
	python -m pip install cython pytest
	python -m pip install pyscipopt==5.2.1 --no-binary=:all:

	- name: Build & Install PyGCGOpt
	run: \|
	pip install .

	- name: Run PyGCGOpt tests
	run: \|
	pytest .

Provide feedback