update Go version #103

	name: ci
	on: [push]

	jobs:
	test:
	name: test and coverage
	runs-on: ubuntu-latest
	steps:
	- name: set up
	uses: actions/setup-go@v3
	with:
	go-version: '>=1.21.0'
	- name: checkout
	uses: actions/checkout@v2
	- name: golangci-lint
	uses: golangci/golangci-lint-action@v3
	with:
	version: latest
	- name: test
	run: go test ./... -race -coverprofile=coverage.out -covermode=atomic -v

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