chore(deps): update dependency font-awesome to v6

src/docs/asciidoc/template/template.html

@@ -8,7 +8,7 @@
     <link rel='stylesheet' id='wp-block-library-css' href='https://micronaut.io/wp-includes/css/dist/block-library/style.min.css' type='text/css' media='all'/>
     <link rel='stylesheet' id='fonts-fira-sans-css' href='https://fonts.googleapis.com/css2?family=Fira+Sans%3Awght%40300%3B500&#038;display=swap&#038;ver=5.7' type='text/css' media='all'/>
     <link rel='stylesheet' id='micronaut-style-css' href='https://micronaut.io/wp-content/themes/micronaut/style.min.css' type='text/css' media='all'/>
-    <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/4.7.0/css/font-awesome.min.css">
+    <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/6.7.1/css/font-awesome.min.css">
     <link rel="icon" href="https://micronaut.io/wp-content/uploads/2021/02/favicon.ico" type="image/png">
     <link rel="shortcut icon" href="https://micronaut.io/wp-content/uploads/2021/02/favicon.ico" type="image/png">
     <link rel="stylesheet" href="css/multi-lang-sample.css">