Add test workflow to verify numba availability on GH Actions #1

	name: Test Numba availability

	on:
	push:
	branches:
	- numba
	workflow_dispatch:

	jobs:
	test-numba:
	runs-on: ubuntu-latest
	steps:
	- uses: actions/setup-python@v5
	with:
	python-version: '3.13'
	- name: Install numba
	run: pip install numba
	- name: Test numba
	run: \|
	python -c "
	import numba
	print('Numba version:', numba.__version__)
	print('LLVM version:', numba.config.LLVM_VERSION)

	from numba import njit
	import numpy as np

	@njit
	def fib(n):
	if n < 2:
	return n
	return fib(n-1) + fib(n-2)

	# Trigger compilation
	result = fib(20)
	print('fib(20) =', result)
	print('Numba is working correctly on GH Actions!')
	"

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