update Font Awesome (#2150)

REF: https://fontawesome.com/changelog/latest

Author: coliff

_includes/scripts.html

@@ -9,7 +9,7 @@
   {% endfor %}
 {% else %}
   <script src="{{ '/assets/js/main.min.js' | relative_url }}"></script>
-  <script defer src="https://use.fontawesome.com/releases/v5.8.1/js/all.js" integrity="sha384-g5uSoOSBd7KkhAMlnQILrecXvzst9TdC09/VM+pjDTCM+1il8RHz5fKANTFFb+gQ" crossorigin="anonymous"></script>
+  <script defer src="https://use.fontawesome.com/releases/v5.8.2/js/all.js" integrity="sha384-DJ25uNYET2XCl5ZF++U8eNxPWqcKohUUBUpKGlNLMchM7q4Wjg2CUpjHLaL8yYPH" crossorigin="anonymous"></script>
 {% endif %}
 
 {% if site.search == true or page.layout == "search" %}