Revert "Update GitHub Actions" #108

	---
	name: Validate changelog
	on:
	pull_request:
	types:
	- opened
	- reopened
	- synchronize
	jobs:
	test_changelog:
	name: Validate changelog
	runs-on: ubuntu-latest
	steps:
	- name: Look up Git repository in cache
	uses: actions/cache/restore@v4
	with:
	path: .git/
	key: test-changelog-cache-git-${{ github.run_id }}
	restore-keys: \|
	test-changelog-cache-git
	- name: Checkout
	uses: actions/checkout@v4
	- name: Setup Python
	uses: actions/setup-python@v5
	with:
	python-version-file: .version-python
	- name: Detect changes
	uses: dorny/paths-filter@v3
	id: filter
	with:
	filters: \|
	build_files: &build_files
	- '.github/workflows/test_changelog.yml'
	- 'build'
	- 'build.bat'
	- 'build_system/main.py'
	- 'build_system/core/**'
	- 'build_system/util/**'
	- 'build_system/targets/paths.py'
	- 'build_system/targets/versioning/*'
	bugfix:
	- *build_files
	- '.changelog-bugfix.md'
	feature:
	- *build_files
	- '.changelog-feature.md'
	main:
	- *build_files
	- '.changelog-main.md'
	- name: Validate bugfix changelog
	if: steps.filter.outputs.bugfix == 'true'
	run: ./build validate_changelog_bugfix
	- name: Validate feature changelog
	if: steps.filter.outputs.feature == 'true'
	run: ./build validate_changelog_feature
	- name: Validate main changelog
	if: steps.filter.outputs.main == 'true'
	run: ./build validate_changelog_main
	- name: Save Git repository to cache
	uses: actions/cache/save@v4
	if: success() \|\| failure()
	with:
	path: .git/
	key: test-changelog-cache-git-${{ github.run_id }}

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