Bump CI to use supported go version, fix a single Go 1.20 issue in mount pkg; rm uneeded errorlint annotations #421

	on: [push, pull_request]
	name: Test
	jobs:
	test:
	strategy:
	matrix:
	go-version: [1.20.x, 1.21.x]
	platform: [ubuntu-20.04, ubuntu-22.04, windows-latest, macos-11]
	runs-on: ${{ matrix.platform }}
	steps:
	- name: Install Go
	uses: actions/setup-go@v4
	with:
	go-version: ${{ matrix.go-version }}
	- name: Checkout code
	uses: actions/checkout@v3
	- name: go mod tidy
	run: \|
	make tidy
	git diff --exit-code
	- name: Lint
	run: make lint
	- name: Cross build
	if: ${{ runner.os == 'Linux' }}
	run: make cross
	- name: Test
	run: \|
	uname -a
	make test

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