add github actions to build & test #4

	name: Build and Test
	on: push
	jobs:
	build:
	runs-on: ubuntu-latest
	steps:
	- name: Checkout Code
	uses: actions/checkout@v4
	- name: Install Lua
	run: sudo apt-get install lua5.4 liblua5.4-dev
	- name: Set up Go
	uses: actions/setup-go@v5
	with:
	go-version: '>=1.20.0'
	- name: Build
	run: go build -tags lua54 -v ./...
	- name: Test
	run: go test -tags lua54 -v ./...

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