[v2023.2.x] Add autoupdater signing key of @sur5r #74

	---
	name: "Lint"

	# yamllint disable-line rule:truthy
	on: [push, pull_request]

	jobs:
	lint-yaml:
	name: "YAML"
	runs-on: ubuntu-22.04
	env:
	YAML_FILES: \|
	.github/workflows/*.yml
	steps:
	- uses: actions/checkout@v4
	- name: Install Dependencies
	run: sudo apt-get update && sudo apt-get install -y yamllint
	- name: Validate YAML Files
	run: yamllint $YAML_FILES

	shellcheck:
	name: "Shell Scripts"
	runs-on: ubuntu-22.04
	env:
	SHELL_FILES: >-
	contrib/*.sh
	.github/*.sh
	steps:
	- uses: actions/checkout@v4
	- name: Install Dependencies
	run: sudo apt-get update && sudo apt-get install -y shellcheck
	- name: Validate Shell Scripts
	run: shellcheck --external-sources --source-path=SCRIPTDIR $SHELL_FILES

	image-customization:
	name: "Image-Customization"
	runs-on: ubuntu-22.04
	env:
	LUA_FILES: >-
	image-customization.lua
	steps:
	- uses: actions/checkout@v4
	- name: Install Dependencies
	run: sudo apt-get -y update && sudo apt-get -y install lua-check
	- name: Lint Image-Customization
	run: luacheck --config contrib/site-luacheckrc $LUA_FILES

	json:
	name: "JSON"
	runs-on: ubuntu-22.04
	env:
	BUILD_INFO: ${{ github.workspace }}/.github/build-info.json
	steps:
	- uses: actions/checkout@v4
	- name: Install Validator
	run: sudo apt-get update && sudo apt-get install -y python3-demjson
	- name: Run validation
	run: jsonlint -v "$BUILD_INFO"

Provide feedback