ci(styleci): update config for preset changes

https://docs.styleci.io/fixers#psr12_braces
> Structural bodies MUST be enclosed by braces. Braces MUST be properly placed, allowing single-line closures, and the body properly indented.

https://docs.styleci.io/fixers#psr2_braces
> Structural bodies MUST be enclosed by braces. Braces MUST be properly placed and the body properly indented.

According to bulletin :
https://blog.styleci.io/new-php-fixers-3/
> Our laravel preset has been updated. We have removed the braces fixer and added the psr2_braces fixer.

.styleci.yml

@@ -7,6 +7,7 @@ enabled:
   - no_empty_comment
 
 disabled:
+  - psr2_braces
   - phpdoc_no_package
   - concat_without_spaces
   - no_blank_lines_after_class_opening