Update dependency font-awesome to v6

Author: renovate-bot

index.html

@@ -20,7 +20,7 @@
 <link rel="shortcut icon" href="images/logo.png">
 <link rel="stylesheet" type="text/css" href="css/style.css"/>
 <link rel="stylesheet" href="css/style2.css">
-<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/5.15.4/css/all.css">
+<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/6.1.1/css/all.css">
 
 <!--using FontAwesome---------------->
 <script src="https://kit.fontawesome.com/c8e4d183c2.js" crossorigin="anonymous"></script>