.github: Update docker/login-action to v3 #429

	name: Golang CI
	on: [push, pull_request]
	jobs:
	test:
	runs-on: ubuntu-latest
	strategy:
	fail-fast: false
	matrix:
	go: [ '1.21.3' ]
	steps:
	- uses: actions/checkout@v2
	- uses: actions/setup-go@v2
	with:
	go-version: ${{ matrix.go }}
	- name: Login to DockerHub
	uses: docker/login-action@v3
	with:
	username: ${{ secrets.DOCKERHUB_USERNAME }}
	password: ${{ secrets.DOCKERHUB_TOKEN }}
	- name: Unit tests
	run: make test
	- name: (Experimental) Vulnerability Scan
	run: make vuln-scan
	- name: Integration tests
	run: docker-compose run testserver make ci
	- name: Send coverage
	uses: shogo82148/actions-goveralls@v1
	with:
	path-to-profile: coverage.out
	flag-name: Go-${{ matrix.go }}
	parallel: true

	finish:
	needs: test
	runs-on: ubuntu-latest
	steps:
	- uses: shogo82148/actions-goveralls@v1
	with:
	parallel-finished: true

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