chore(deps): update actions/checkout action to v4 #1015

	# name of the action
	name: validate

	# trigger on pull_request or push events
	on:
	pull_request:
	push:

	# pipeline to execute
	jobs:
	validate:
	runs-on: ubuntu-latest

	steps:
	- name: clone
	uses: actions/checkout@3df4ab11eba7bda6032a0b82a6bb43b11571feac # v4

	- name: install go
	uses: actions/setup-go@v4
	with:
	# use version from go.mod file
	go-version-file: 'go.mod'
	cache: true
	check-latest: true

	- name: validate
	run: \|
	# Check that go mod tidy produces a zero diff; clean up any changes afterwards.
	go mod tidy && git diff --exit-code; code=$?; git checkout -- .; (exit $code)
	# Check that go vet ./... produces a zero diff; clean up any changes afterwards.
	go vet ./... && git diff --exit-code; code=$?; git checkout -- .; (exit $code)
	# Check that go fmt ./... produces a zero diff; clean up any changes afterwards.
	go fmt ./... && git diff --exit-code; code=$?; git checkout -- .; (exit $code)
	# Check that go fix ./... produces a zero diff; clean up any changes afterwards.
	go fix ./... && git diff --exit-code; code=$?; git checkout -- .; (exit $code)

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