Upgrade minimum required Go version to `1.20` #1318

	name: neofs-sdk-go tests

	on:
	pull_request:
	branches:
	- master
	types: [opened, synchronize]
	paths-ignore:
	- '*/.md'
	workflow_dispatch:

	jobs:
	tests:
	name: Tests
	runs-on: ubuntu-latest
	strategy:
	matrix:
	go_versions: [ '1.20', '1.21', '1.22' ]
	fail-fast: false
	steps:
	- uses: actions/checkout@v4
	with:
	fetch-depth: 0

	- name: Set up Go
	uses: actions/setup-go@v5
	with:
	go-version: '${{ matrix.go_versions }}'

	- name: Restore Go modules from cache
	uses: actions/cache@v4
	with:
	path: /home/runner/go/pkg/mod
	key: deps-${{ hashFiles('go.sum') }}

	- name: Update Go modules
	run: make dep

	- name: Run tests
	run: make test-full

	lint:
	runs-on: ubuntu-latest
	steps:
	- name: Check out code
	uses: actions/checkout@v4

	- name: golangci-lint
	uses: golangci/golangci-lint-action@v3
	with:
	version: latest

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