ci(mergify): upgrade configuration to current format #138

	name: PR Build

	on: [ pull_request ]

	jobs:
	build:
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v4
	with:
	fetch-depth: 0
	- name: Set up Python
	uses: actions/setup-python@v5
	with:
	python-version: '3.9'
	cache: 'pip'
	- name: Display Python version
	run: python --version
	- name: Install dependencies with pip
	run: \|
	pip install flake8
	pip install -r dev/requirements.txt
	pip install -r dev/buildtool/requirements.txt
	- name: Install regctl for container image tagging
	run: \|
	curl -L https://github.com/regclient/regclient/releases/download/v0.4.5/regctl-linux-amd64 >regctl
	install --mode 755 regctl /usr/local/bin/
	regctl version
	- name: Setup for tests
	run: \|
	git config --global user.email "[email protected]"
	git config --global user.name "Spinnaker GHA"
	- run: ./unittest/run_tests.sh
	# https://docs.github.com/en/actions/automating-builds-and-tests/building-and-testing-python#using-the-python-starter-workflow
	- name: Lint with flake8
	run: \|
	# stop the build if there are Python syntax errors or undefined names
	flake8 . --count --select=E9,F63,F7,F82 --show-source --statistics
	# exit-zero treats all errors as warnings. The GitHub editor is 127 chars wide
	flake8 . --count --exit-zero --max-complexity=10 --max-line-length=127 --statistics

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