remove unused metrics pkg (#8) #56

	name: Checks

	on:
	push:
	branches:
	- main
	pull_request:

	jobs:
	test:
	name: Test
	runs-on: ubuntu-latest
	steps:
	- name: Set up Go
	uses: actions/setup-go@v3
	with:
	go-version: ^1.22
	id: go

	- name: Check out code into the Go module directory
	uses: actions/checkout@v2

	- name: Run unit tests and generate the coverage report
	run: make test-race

	lint:
	name: Lint
	runs-on: ubuntu-latest
	steps:
	- name: Set up Go
	uses: actions/setup-go@v3
	with:
	go-version: ^1.22
	id: go

	- name: Check out code into the Go module directory
	uses: actions/checkout@v2

	- name: Install gofumpt
	run: go install mvdan.cc/[email protected]

	- name: Install staticcheck
	run: go install honnef.co/go/tools/cmd/[email protected]

	- name: Install golangci-lint
	run: go install github.com/golangci/golangci-lint/cmd/[email protected]

	- name: Install NilAway
	run: go install go.uber.org/nilaway/cmd/[email protected]

	- name: Lint
	run: make lint

	- name: Ensure go mod tidy runs without changes
	run: \|
	go mod tidy
	git update-index -q --really-refresh
	git diff-index HEAD

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