feat: add workflow that builds an app with version and variant #4138

	name: Calens Changelog
	# This workflow is triggered on pushes to the repository.
	on:
	push:
	branches:
	- feature/*
	- fix/*
	- improvement/*
	- release/*
	- technical/*

	permissions:
	contents: read

	jobs:
	build:
	permissions:
	contents: write
	runs-on: ubuntu-22.04
	name: Generate Calens Changelog
	steps:
	- name: Checkout
	uses: actions/checkout@v5
	with:
	persist-credentials: false
	- name: Run Calens
	uses: actionhippie/calens@v1
	with:
	target: CHANGELOG.md
	- name: Commit files
	uses: GuillaumeFalourd/git-commit-push@v1.3
	with:
	email: devops@owncloud.com
	name: ownClouders
	commit_message: "docs: calens changelog updated"
	access_token: ${{ secrets.GH_PAT }}

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