[codecov] add configuration for codecov.io #93

	name: go ci build
	"on":
	push:
	branches:
	- main
	pull_request:
	branches:
	- main
	permissions:
	contents: read
	jobs:
	build:
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v4
	- name: Setup Go
	uses: actions/setup-go@v4
	with:
	go-version-file: 'go.mod'
	- name: Install go dependencies
	run: go get .
	- name: Build
	run: go build -v ./...
	- name: Test
	run: go test ./... -cover -json > TestResults.json
	- name: Cat results
	if: always()
	run: cat TestResults.json
	- name: Upload coverage reports to Codecov
	uses: codecov/codecov-action@v3
	env:
	CODECOV_TOKEN: ${{ secrets.CODECOV_TOKEN }}

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