Add missing cstdint includes to avoid compiler errors because of unknown symbols uint32_t #1586

	name: Check header guards

	on: [push, pull_request]

	jobs:
	build:
	# Set the type of machine to run on
	runs-on: ubuntu-20.04
	steps:

	- name: Checkout source code
	uses: actions/checkout@v2

	- name: Setup Dependencies
	uses: actions/setup-python@v2
	with:
	python-version: '3.7'
	- name: Install checkguard
	run: pip install guardonce

	- name: Check that include guards are properly named
	run: \|
	wrong_files=$(checkguard -r src/catch2/ -p "name \| append _INCLUDED \| upper")
	if [[ $wrong_files ]]; then
	echo "Files with wrong header guard:"
	echo $wrong_files
	exit 1
	fi

	- name: Check that there are no duplicated filenames
	run: \|
	./tools/scripts/checkDuplicateFilenames.py

	- name: Check that all source files have the correct license header
	run: \|
	./tools/scripts/checkLicense.py

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