Go: Rename module, remove cruft, modernize #7

	name: Go
	on: [push]
	jobs:
	build:
	name: Build
	runs-on: ubuntu-latest
	steps:
	- name: Set up Go
	uses: actions/setup-go@v1
	with:
	go-version: ^1.19
	id: go

	- name: Check out code into the Go module directory
	uses: actions/checkout@v1

	- name: Download modules
	run: go mod download

	- name: Test
	run: go test -v ./...

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