new(ci): add a sample kmod source to test that we are able to build a kmod after kernel headers are installed #3

	name: Test composite action
	on:
	pull_request:
	paths:
	- 'action.yml'
	workflow_dispatch:

	jobs:
	test-composite-action:
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v4

	- name: Test action
	uses: ./
	with:
	cache: 'true'
	release: '6.0.0'

	- name: Check that a fake module can be built
	working-directory: .github/workflows
	run: make

	test-composite-action-cached:
	runs-on: ubuntu-latest
	needs: test-composite-action
	steps:
	- uses: actions/checkout@v4

	- name: Test that kernel sources are cached
	uses: actions/cache@v4
	with:
	path: \|
	/usr/src/linux
	key: ${{ runner.os }}-${{ runner.arch }}-6.0.0

	- name: Fully restore through action
	uses: ./
	with:
	cache: 'true'
	release: '6.0.0'

	- name: Check that a fake module can be built again
	working-directory: .github/workflows
	run: make

Provide feedback