Bump to `go` `1.21` #392

	name: CI Build + Unit Test

	on:
	push:
	branches: ["main"]
	pull_request:

	jobs:
	build:
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v3

	- name: Set up Go
	uses: actions/setup-go@v4
	with:
	go-version: 1.21

	- name: Build
	run: go build -v ./...

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

	lint:
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v3

	- name: Set up Go
	uses: actions/setup-go@v4
	with:
	go-version: 1.21

	- name: Run go vet
	run: go vet ./...

	- name: Check gofmt passes
	run: \|
	if [ -n "$(gofmt -l .)" ]; then
	echo "gofmt failed, please run gofmt -w ."
	exit 1
	fi

	integration:
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v3

	- name: Set up Go
	uses: actions/setup-go@v4
	with:
	go-version: 1.21

	- name: Run integration tests
	run: tests/local

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