feat: use pure-go implementation when cgo is disabled #338

	name: CI

	on:
	push:
	pull_request:

	jobs:
	test:
	name: Test
	strategy:
	matrix:
	go: ["1.20", "1.19", "1.18"]
	platform: [ubuntu-latest] # can not run in windows OS
	cgo: ["0", "1"]
	runs-on: ubuntu-latest
	steps:
	- name: Set up Go
	uses: actions/setup-go@v4
	with:
	go-version: ${{ matrix.go }}
	- uses: actions/checkout@v3
	- name: Test
	env:
	CGO_ENABLED: ${{ matrix.cgo }}
	run: go test -v -cover .

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