Add Join() from go1.20 #1

	name: Lint

	on:
	push:
	branches:
	- master
	pull_request:

	env:
	SSH_AUTH_SOCK: /tmp/ssh_agent.sock
	GOLANGCI_LINT_VERSION: v1.57.2

	jobs:
	lint:
	name: lint
	strategy:
	matrix:
	os: [ ubuntu-latest ]
	runs-on: ${{ matrix.os }}
	steps:
	- name: Checkout code
	uses: actions/checkout@v4

	- name: Install Go
	uses: actions/setup-go@v5
	with:
	go-version-file: ./go.mod
	cache: true # caching and restoring go modules and build outputs

	- name: Check that 'go mod tidy' was called before commit
	run: go mod tidy && git diff --exit-code

	- name: golangci-lint
	uses: golangci/golangci-lint-action@v4
	with:
	version: ${{ env.GOLANGCI_LINT_VERSION }}
	skip-cache: true # cache/restore is done by actions/setup-go@v3 step
	args: -v

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