Convert to Github Actions #5

	name: porter/skeletor
	on:
	push:
	branches:
	- main
	- v*
	pull_request:
	branches:
	- main
	env:
	PORTER_PACKAGES_REMOTE: https://github.com/getporter/test-packages.git
	PORTER_RELEASE_REPOSITORY: github.com/getporter/skeletor
	jobs:
	build:
	runs-on: ubuntu-latest
	steps:
	- name: checkout
	uses: actions/checkout@v4.1.0
	with:
	fetch-depth: 0
	- name: Install Go
	uses: actions/checkout@v4
	with:
	go-version-file: go.mod
	cache: true
	- name: Configure Agent
	run: go run mage.go ConfigureAgent
	- name: Test
	run: mage Test
	- name: Cross Compile
	run: mage XBuildAll
	- name: Publish
	if: success() && github.event_name != 'PullRequest'
	env:
	GITHUB_TOKEN: "${{ secrets.GITHUB_TOKEN }}"
	run: mage Publish

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