build: use go 1.21 #714

	name: Go
	on:
	pull_request: {}
	push:
	branches:
	- master
	permissions:
	contents: read

	jobs:
	build:
	name: Build
	runs-on: ubuntu-latest
	strategy:
	matrix:
	go:
	- '1.21'
	- '1.22'
	- '1.23'
	fail-fast: false
	steps:
	- name: Harden Runner
	uses: step-security/harden-runner@91182cccc01eb5e619899d80e4e971d6181294a7 # v2.10.1
	with:
	egress-policy: audit

	- name: Set up Go ${{ matrix.go }}
	uses: actions/setup-go@0a12ed9d6a96ab950c8f026ed9f722fe0da7ef32 # v5.0.2
	with:
	go-version: ${{ matrix.go }}
	- name: Check out code into the Go module directory
	uses: actions/checkout@eef61447b9ff4aafe5dcd4e0bbf5d482be7e7871 # v4.2.1
	- name: Get dependencies
	run: \|
	go get -v -t -d ./...
	if [ -f Gopkg.toml ]; then
	curl https://raw.githubusercontent.com/golang/dep/master/install.sh \| sh
	dep ensure
	fi
	- name: Build
	run: go build -v ./...
	- name: Test
	run: go test -v ./...

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