Add `mkosi.bump` script #6025

	---
	# https://github.com/redhat-plumbers-in-action/differential-shellcheck#readme

	name: Differential ShellCheck
	on:
	push:
	branches:
	- main
	pull_request:
	branches:
	- main

	permissions:
	contents: read

	jobs:
	lint:
	runs-on: ubuntu-24.04

	permissions:
	security-events: write

	steps:
	- name: Repository checkout
	uses: actions/checkout@692973e3d937129bcbf40652eb9f2f61becf3332
	with:
	fetch-depth: 0

	- name: Differential ShellCheck
	uses: redhat-plumbers-in-action/differential-shellcheck@60c9f2b924a9c5a2ddbb25e7b23e8e11b56faab9
	with:
	token: ${{ secrets.GITHUB_TOKEN }}

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