Update static analyzer configuration

.php-cs-fixer.dist.php

@@ -24,11 +24,15 @@ namespace PhpCsFixer;
 
 /**
  * Configuration for PHP-CS-Fixer.
+ *
  * @see https://github.com/PHP-CS-Fixer/PHP-CS-Fixer/blob/master/doc/config.rst
  *
  * @return ConfigInterface
  */
-return (new Config())
+$config = new Config();
+$finder = new Finder();
+
+return $config
     ->setRiskyAllowed(true)
     ->setRules(['@PSR12' => true])
-    ->setFinder((new Finder())->in(__DIR__));
+    ->setFinder($finder->in([__DIR__ . '/src']));

phpcs.xml.dist

@@ -3,5 +3,7 @@
     <description>Open Culture Consulting strictly follows PSR standards.</description>
     <file>./src</file>
     <arg name="extensions" value="php"/>
+    <rule ref="PSR1"/>
+    <rule ref="PSR2"/>
     <rule ref="PSR12"/>
 </ruleset>