Fix typo in property Charset::aComments

Author: oliverklee

lib/Sabberworm/CSS/Property/Charset.php

@@ -24,7 +24,7 @@ class Charset implements AtRule
     /**
      * @var array
      */
-    protected $aComment;
+    protected $aComments;
 
     /**
      * @param string $sCharset

phpstan-baseline.neon

@@ -10,8 +10,3 @@ parameters:
 			count: 1
 			path: lib/Sabberworm/CSS/Parsing/ParserState.php
 
-		-
-			message: "#^Access to an undefined property Sabberworm\\\\CSS\\\\Property\\\\Charset\\:\\:\\$aComments\\.$#"
-			count: 5
-			path: lib/Sabberworm/CSS/Property/Charset.php
-