hack: add verification of go sum in gh action #57

	---
	name: golangci-lint

	on:
	push:
	branches: ['*']
	pull_request:
	branches: ['*']

	jobs:
	golangci-lint:
	name: golangci-lint
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v4

	- uses: actions/setup-go@v5
	with:
	go-version-file: go.mod

	- name: Source build env variables
	run: \|
	grep -v '^#' hack/build.env >> $GITHUB_ENV

	- name: golangci-lint
	uses: golangci/golangci-lint-action@v4
	with:
	# Optional: version of golangci-lint to use in form of v1.2 or
	# v1.2.3 or `latest` to use the latest version
	version: ${{ env.GO_LINT_IMG_TAG }}

	# Optional: working directory, useful for monorepos
	# working-directory: somedir

	# Optional: golangci-lint command line arguments.
	# TODO: --out-format=github-action is enforced but doesn't print
	# file names or line numbers. Watch for fix in Issue:
	# https://github.com/golangci/golangci-lint-action/issues/119
	#
	# The weird NO_FUTURE thing is a workaround suggested here:
	# https://github.com/golangci/golangci-lint-action/issues/119#issuecomment-981090648
	args: "--timeout=5m --out-${NO_FUTURE}format=colored-line-number"

	# Optional: show only new issues if it's a pull request.
	# The default value is `false`.
	# only-new-issues: true

	# Optional: if set to true then the action don't cache or
	# restore ~/go/pkg.
	# skip-pkg-cache: true

	# Optional: if set to true then the action don't cache or
	# restore ~/.cache/go-build.
	# skip-build-cache: true

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