[sluggable] Fix tralling comma on ODM integer type

lib/Gedmo/Sluggable/Mapping/Driver/Annotation.php

@@ -37,7 +37,7 @@ class Annotation implements AnnotationDriverInterface
         'string',
         'text',
         'integer',
-        'int'
+        'int',
     );
 
     /**

lib/Gedmo/Sluggable/Mapping/Driver/Xml.php

@@ -30,7 +30,7 @@ class Xml extends BaseXml
         'string',
         'text',
         'integer',
-        'int'
+        'int',
     );
 
     /**

lib/Gedmo/Sluggable/Mapping/Driver/Yaml.php

@@ -35,7 +35,7 @@ class Yaml extends File implements Driver
         'string',
         'text',
         'integer',
-        'int'
+        'int',
     );
 
     /**