Fix settings migration regression (#118)

* Revert "Use absolute path in Configurator to pass failing tests."

This reverts commit a695b45.

* Swap instance of `Process` with custom base dir, like we do in other tests.

src/Configurator.php

@@ -61,7 +61,7 @@ public function normalize()
 
         $this->preparePhpCsFixer();
 
-        Process::run([__DIR__.'/../vendor/bin/php-cs-fixer', 'fix', $path, '--rules', $rules]);
+        Process::run(['vendor/bin/php-cs-fixer', 'fix', $path, '--rules', $rules]);
 
         return $this;
     }

tests/MigrateSiteTest.php

@@ -2,6 +2,7 @@
 
 namespace Tests;
 
+use Facades\Statamic\Console\Processes\Process;
 use Statamic\Facades\Path;
 use Statamic\Migrator\Configurator;
 use Statamic\Migrator\YAML;
@@ -54,6 +55,8 @@ protected function setUp(): void
         $this->files->copyDirectory(__DIR__.'/Fixtures/site', base_path('site'));
         $this->files->copyDirectory(__DIR__.'/Fixtures/assets', base_path('assets'));
         $this->files->copy(__DIR__.'/Fixtures/routes/web.php', $this->paths('routesFile'));
+
+        Process::swap(new \Statamic\Console\Processes\Process(__DIR__.'/../'));
     }
 
     /** @test */