Refactor some CI scripts #3375

	name: Checks

	on:
	pull_request:
	types: [assigned, opened, synchronize, reopened, labeled, unlabeled]
	branches:
	- master
	- v[0-9]+.[0-9]+

	jobs:
	# Changelog checker will verify if CHANGELOG.rst was updated for every PR
	# See: https://keepachangelog.com/en/1.0.0/
	changelog-checker:
	name: Add CHANGELOG.rst
	runs-on: ubuntu-20.04
	steps:
	- uses: actions/checkout@v4
	- name: Changelog check
	# https://github.com/marketplace/actions/changelog-checker
	uses: Zomzog/[email protected]
	with:
	fileName: CHANGELOG.rst
	checkNotification: Simple
	env:
	GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}

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