[OP-1123] Bump GHAs actions/checkout@v2 -> v4, actions/cache@v3 -> v4 #10

	# on:
	# pull_request:
	# push:
	# branches:
	# - main
	on:
	pull_request:
	push:
	branches:
	- OP-1123-GHA-bump-deprecated-gha
	jobs:
	static-analyze:
	runs-on: ubuntu-20.04
	steps:
	- uses: actions/checkout@v4
	- uses: shivammathur/setup-php@v2
	with:
	php-version: '7.4'
	- name: Validate composer.json and composer.lock
	run: composer validate --strict
	- name: Cache Composer packages
	id: composer-cache
	uses: actions/cache@v4
	with:
	path: vendor
	key: composer-${{ hashFiles('composer.lock') }}
	- name: Install dependencies
	run: composer install --prefer-dist --no-progress
	- run: vendor/bin/phpstan analyse -c phpstan.neon
	# - run: vendor/bin/ecs check --config vendor/landingi/php-coding-standards/ecs.php
	tests:
	runs-on: ubuntu-20.04
	steps:
	- uses: actions/checkout@v4
	- uses: shivammathur/setup-php@v2
	with:
	php-version: '7.4'
	- name: Validate composer.json and composer.lock
	run: composer validate --strict
	- name: Cache Composer packages
	id: composer-cache
	uses: actions/cache@v4
	with:
	path: vendor
	key: composer-${{ hashFiles('composer.lock') }}
	- name: Install dependencies
	run: composer install --prefer-dist --no-progress
	- run: vendor/bin/phpunit --testsuite all --coverage-clover=build/coverage.xml
	- run: bash <(curl -s https://codecov.io/bash) -f build/coverage.xml

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