Fix codestyle

Author: spawnia

tests/Validator/UniqueEnumValueNamesTest.php

@@ -195,7 +195,7 @@ enum SomeEnum
     public function testAddingNewValueToTheTypeInsideExistingSchema(): void
     {
         $schema = BuildSchema::build('enum SomeEnum');
-        $sdl = '
+        $sdl    = '
       extend enum SomeEnum {
         FOO
       }
@@ -218,7 +218,7 @@ enum SomeEnum {
         FOO
       }
             ');
-        $sdl = '
+        $sdl    = '
       extend enum SomeEnum {
         FOO
       }
@@ -256,7 +256,7 @@ public function testAddingEnumValuesToExistingSchemaTwice(): void
         $schema = BuildSchema::build('
       enum SomeEnum
             ');
-        $sdl = '
+        $sdl    = '
       extend enum SomeEnum {
         FOO
       }