[10.x] Flush about command during test runs (#49557)

* Flush about command during test runs

* Update name

* Update TestCase.php

---------

Co-authored-by: Taylor Otwell <[email protected]>

Author: timacdonald

src/Illuminate/Foundation/Console/AboutCommand.php

@@ -302,4 +302,16 @@ protected function toSearchKeyword(string $value)
     {
         return (string) Str::of($value)->lower()->snake();
     }
+
+    /**
+     * Flush the registered about data.
+     *
+     * @return void
+     */
+    public static function flushState()
+    {
+        static::$data = [];
+
+        static::$customDataResolvers = [];
+    }
 }

src/Illuminate/Foundation/Testing/TestCase.php

@@ -6,6 +6,7 @@
 use Illuminate\Console\Application as Artisan;
 use Illuminate\Database\Eloquent\Model;
 use Illuminate\Foundation\Bootstrap\HandleExceptions;
+use Illuminate\Foundation\Console\AboutCommand;
 use Illuminate\Foundation\Http\Middleware\ConvertEmptyStringsToNull;
 use Illuminate\Foundation\Http\Middleware\TrimStrings;
 use Illuminate\Queue\Queue;
@@ -242,6 +243,7 @@ protected function tearDown(): void
         $this->originalExceptionHandler = null;
         $this->originalDeprecationHandler = null;
 
+        AboutCommand::flushState();
         Artisan::forgetBootstrappers();
         Component::flushCache();
         Component::forgetComponentsResolver();