Improve coding standards #2156

Job	Run time
integration-tests (PHP 7.4 & Guzzle 6)	48s
linter-check	20s
phpstan-tests	23s
Yaml linting check	10s
integration-tests (PHP 7.4) (Guzzle-7)	50s
integration-tests (PHP 7.4) (Guzzle-7-Adapter)	52s
integration-tests (PHP 7.4) (PHP-HTTP-CurlClient)	58s
integration-tests (PHP 7.4) (Kriswallsmith-Buzz)	1m 10s
integration-tests (PHP 8.0) (Guzzle-7)	1m 0s
integration-tests (PHP 8.0) (Guzzle-7-Adapter)	50s
integration-tests (PHP 8.0) (PHP-HTTP-CurlClient)	54s
integration-tests (PHP 8.0) (Kriswallsmith-Buzz)	49s
integration-tests (PHP 8.1) (Guzzle-7)	1m 2s
integration-tests (PHP 8.1) (Guzzle-7-Adapter)	53s
integration-tests (PHP 8.1) (PHP-HTTP-CurlClient)	1m 5s
integration-tests (PHP 8.1) (Kriswallsmith-Buzz)	52s
integration-tests (PHP 8.2) (Guzzle-7)	51s
integration-tests (PHP 8.2) (Guzzle-7-Adapter)	1m 3s
integration-tests (PHP 8.2) (Symfony-HttpClient)	52s
integration-tests (PHP 8.2) (PHP-HTTP-CurlClient)	1m 0s
integration-tests (PHP 8.2) (Kriswallsmith-Buzz)	1m 8s
integration-tests (PHP 8.3) (Guzzle-7)	1m 4s
integration-tests (PHP 8.3) (Guzzle-7-Adapter)	1m 4s
integration-tests (PHP 8.3) (Symfony-HttpClient)	53s
integration-tests (PHP 8.3) (PHP-HTTP-CurlClient)	53s
integration-tests (PHP 8.3) (Kriswallsmith-Buzz)	1m 2s
Upload coverage to Codecov	8s
	22m 54s

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