chore: add SafeDeclareStrictTypesRector to code quality set

Author: calebdw

src/Config/Level/CodeQualityLevel.php

@@ -183,7 +183,7 @@ final class CodeQualityLevel
         SortCallLikeNamedArgsRector::class,
         SortAttributeNamedArgsRector::class,
         RemoveReadonlyPropertyVisibilityOnReadonlyClassRector::class,
-        // SafeDeclareStrictTypesRector::class,
+        SafeDeclareStrictTypesRector::class,
     ];
 
     /**