Only warn about unknown config options instead of rejecting them #340

	name: Version
	on:
	push:
	branches:
	- main
	pull_request: {}

	jobs:
	version:
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v2
	with:
	fetch-depth: 0
	- uses: actions/setup-go@v4
	with:
	go-version: 1.x
	- name: Check version
	# TODO(elippmann): Needs adjustments as soon as we release from (support) branches too.
	run: \|
	actual="$(go run cmd/icingadb/main.go --version \| head -n1 \| sed 's/Icinga DB version: $.*$/v\1/')"
	expected="$(git describe --tags $(git rev-list --tags --max-count=1))"
	echo "Actual version: $actual"
	echo "Expected version: $expected"
	test "$actual" = "$expected" \|\| (echo "Versions do not match"; (exit 1))

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