Remove test folder from quality tools configurations

For this proof of concept not needed.

Author: jerowork

.php-cs-fixer.php

@@ -3,7 +3,7 @@
 declare(strict_types=1);
 
 $finder = (new PhpCsFixer\Finder())
-    ->in(['src', 'tests']);
+    ->in(['src']);
 
 return (new PhpCsFixer\Config())
     ->setCacheFile('var/.php-cs-fixer.cache')

phpstan.neon

@@ -5,5 +5,4 @@ parameters:
     level: max
     treatPhpDocTypesAsCertain: false
     paths:
-        - src/
-        - tests/
+        - src/

rector.php

@@ -36,7 +36,6 @@
     ->withCache(__DIR__ . '/var/rector')
     ->withPaths([
         __DIR__ . '/src',
-        __DIR__ . '/tests',
     ])
     ->withParallel()
     ->withRules([