Raise minimum Go version to 1.21 #457

	name: Checks
	on:
	pull_request:
	branches:
	- main
	push:
	branches:
	- main
	jobs:
	build:
	name: Build
	runs-on: ubuntu-latest
	steps:

	# Get the code
	- uses: actions/checkout@v4

	# Setup our go environment
	- name: Setup Go
	uses: actions/setup-go@v5
	with:
	go-version: '1.22.0'

	# Build the code
	- name: Run build
	run: go build .

	# Run unit tests
	- name: Run tests
	run: make test

	lint:
	name: Lint
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v4

	# Setup our go environment
	- name: Setup Go
	uses: actions/setup-go@v5
	with:
	go-version: '1.22.0'

	- name: Run golangci-lint
	uses: golangci/golangci-lint-action@v6
	with:
	version: v1.57

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